CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims the benefit of U.S. Provisional Patent Application Ser. No. 60/745,231, entitled “Collaborative System and Method for Generating Biographical Accounts,” filed Apr. 20, 2006, which is herein incorporated by reference. 
    
    
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates generally to systems and methods for recording life stories and, more particularly, to systems and methods that support the collaborative generation of life stories. 
     2. Description of the Related Art 
     Flickr™ is a popular photo sharing service that is accessible over the Internet. It employs various graphical user interfaces (GUIs) to display photos uploaded by users of its service. On the home page of a user, a collection of photos that have been recently uploaded by users of the service is displayed as thumbnail images. The service also provides its users with some flexibility to personalize their home pages. For example, users can custom define groups and a section on the home page displays the thumbnail images of the most recent photos that have been recently uploaded by the users in that group. A click on any thumbnail image hyperlinks the user to a web page that provides a larger image of the photo, additional information about the photo, and a text window for inputting any comments. 
     Another GUI of the Flickr™ service helps users to customize the display of their photo collections according to set time periods.  FIG. 1  is a schematic illustration of such a GUI. The GUI includes a display section  110  for displaying thumbnail images, a chronology bar  120 , left and right controls  130 ,  140  for the chronology bar, and a plurality of boxes  150  underneath the chronology bar. The chronology bar  120  is displayed with dates that range from the earliest date of the photo collection to the latest date of the photo collection. As a default, thumbnail images of all photos in the collection are displayed in the display section  110 . The left and right controls  130 ,  140  may be moved left and right using a pointing device so as to contract the date range of the photos that are displayed in the display section  110 . In response to the movement of the left and right controls  130 ,  140 , the display section  110  is updated so that only the photos with dates within the modified date range are displayed therein. A click on any thumbnail image inside the display section  110  hyperlinks the user to a web page that provides a larger image of the photo, additional information about the photo, and text windows for editing the photo title, tags, and description. Each of the boxes  150  represents graphically the number of photos for the date range that is spanned by the width of the box. More photos are represented by taller boxes. Also, when the user moves the cursor of the pointing device over a box  150 , the number of photos for the date range that is spanned by the width of that box becomes displayed inside the box. 
     The GUIs described above facilitate the process of sharing photos and organizing them into collections, but they do not, and fundamentally cannot, support the collaborative generation of life stories, which include text narratives of events in addition to photos representative of the events. Also, the GUIs that are employed in web-based life story collection systems generally are configured to facilitate user-to-system interactions and do not support the collaborative generation of life stories. 
     SUMMARY OF THE INVENTION 
     The present invention provides tools for supporting a collaborative system and method for generating life stories. These tools are embodied in GUIs that encourage and promote the collaborative generation of life stories. 
     A GUI according to an embodiment of the invention displays to a user the thumbnail images corresponding to the most recent life stories and comments that have been submitted by other users, so that the user can see their most recent activities with a glance. Only the thumbnail images are initially displayed on the GUI, but when the user positions a mouse pointer on top of a thumbnail image, textual information is displayed to the user, including the name or user ID of the person posting the life story or comment and the title of the life story or comment. Excerpts from the text narrative of the life story or comment may also be displayed. A click on any of thumbnail images hyperlinks the user to a web page that displays the thread containing the life story or comment and provides hyperlinks to GUIs for adding comments to life stories or responding to comments. 
     A GUI according to another embodiment of the invention displays to a user a timeline with various GUI controls and thumbnail images or titles corresponding to any user&#39;s life stories having dates that are within the date range of the timeline. The thumbnail images or titles corresponding to life stories are positioned above the timeline in accordance with the dates of the life stories. In one embodiment, thumbnail images are displayed on the GUI, but when the user positions a mouse pointer on top of a thumbnail image, the title of the life story and/or excerpts from the text narrative of the life story are displayed to the user. A click on any thumbnail image hyperlinks the user to a web page that displays the thread containing the life story and provides hyperlinks to GUIs for adding comments to life stories or responding to comments. In another embodiment, titles are displayed on the GUI, but when the user positions a mouse pointer on top of a title, the thumbnail image of the life story corresponding to that title is also displayed to the user. A click on the title hyperlinks the user to a web page that displays the thread containing the life story and provides hyperlinks to GUIs for adding comments to life stories or responding to comments. 
     With the GUIs according to embodiments of the invention, a user can easily keep track of activities of other users and make comments to their life stories or respond to their comments. Also, the user can easily view the chronology of life stories posted by any user and make comments to such user&#39;s life stories or ask questions about a particular time in such user&#39;s life history. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       So that the manner in which the above recited features of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only typical embodiments of this invention and are therefore not to be considered limiting of its scope, for the invention may admit to other equally effective embodiments. 
         FIG. 1  is a schematic representation of a prior art GUI. 
         FIG. 2  illustrates a networked computer environment in which systems and methods according to embodiments of the present invention may be implemented. 
         FIG. 3A  is a schematic representation of a sample web page that includes a GUI according to a first embodiment of the present invention. 
         FIG. 3B  illustrates another GUI according to a first embodiment of the present invention. 
         FIGS. 4A and 4B  are schematic representations of sample web pages that include a GUI according to a second embodiment of the present invention. 
         FIG. 4C  illustrates another GUI according to a second embodiment of the present invention. 
         FIG. 5A  is a flow diagram that illustrates a synchronous method carried out by the server computer to generate the GUI according to a first embodiment of the present invention. 
         FIG. 5B  is a flow diagram that illustrates an asynchronous method carried out by the server computer to generate the GUI according to a first embodiment of the present invention. 
         FIG. 6  is a flow diagram that illustrates the method steps carried out by the server computer to generate the GUI according to a second embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION 
       FIG. 2  illustrates a networked computer environment in which systems and methods according to embodiments of the present invention may be implemented. As shown, the networked computer environment includes a server computer  210  and a plurality of client computers  220  (only two of which are shown). The server computer  210  and the client computers  220  are connected over a computer network  230 , e.g., the Internet. The components of the server computer  210  that are illustrated in  FIG. 2  include a processor  211  and a system memory  212 . The server computer  210  is connected to a mass storage unit  213  that stores the contents managed by the server computer  210 . Each client computer  220  includes conventional components of a computing device, e.g., a processor, system memory, a hard disk drive, input devices such as a mouse and a keyboard, and output devices such as a monitor (not shown). 
     The server computer  210  is programmed to operate as a network server that communicates with the client computers  220 . In the embodiments of the present invention described herein, the server computer  210  is programmed as a web server that communicates with the client computers  220  using the TCP/IP protocol, and hosts a web site that can be accessed by the client computers  220 . The client computers  220  are programmed to execute web browser programs and access the web pages managed by the server computer  210  by specifying a uniform resource locator (URL) for the server computer  210  into the browser. 
     The server computer  210  manages the contents stored in the mass storage unit  213  using a relational database software. The contents include profile data of the registered users of the web site. The profile data specify: user ID, password, name, e-mail, address including zip code, gender, marital status, date of birth, occupation, a pointer to an image file, various permission settings, and other similar data. The contents further include interview questions, multimedia files such as image files, video files, audio files and flash animation files, life stories posted by the users, commentaries made to the posted life stories, user-defined private circle data, and such other data needed by the server computer  210  to process data received from the users and render web pages requested by the users. 
     In the embodiments of the present invention described below, users are respectively operating the client computers  220  that are connected to the server computer  210  over the Internet. Also, web pages that are displayed to a user are transmitted from the server computer  210  to that user&#39;s client computer  220  and processed by the web browser program stored in that user&#39;s client computer  220  for display through the monitor of that user&#39;s client computer  220 . 
       FIG. 3A  is a schematic representation of a web page that is generated by the server computer  310  and transmitted to a user for display when the user accesses the web site managed by the server computer  310 , and logs in using his or her user ID and password. The web page identifies the web site “OurStory” and the user who logged in with the user&#39;s name (Jane Johnson) and the user&#39;s image. The user can access her life stories by accessing the My Story hyperlink provided in a navigation section  310  of the web page. Other hyperlinks are provided on the web page to allow the user to view and change her profile (Profile hyperlink) and the account settings (Settings hyperlink). 
     The web site permits a single registered user to keep multiple profiles and maintain life stories for each person, group, and sometimes fictional characters, represented in the profiles. This feature may be used in situations where it is preferred to write the life stories from a third person point of view, or for a group of people (e.g., the Smith family or the 1980 U.S. Olympic hockey team) or a fictional character, or where the subject of the life stories is not computer savvy. The Switch Profile hyperlink is provided to users who are maintaining multiple profiles to allow such users to switch to another profile and view and manage the life stories of the person, group, or fictional character represented in the other profile. 
     The web page further provides various other graphical user interface (GUI) elements. They include a navigation section  310 , a question section  320 , an image gallery  330 , an inbox  340 , and a collaboration section  350 . 
     The navigation section  310  includes hyperlinks to web pages that are used to view, modify or add to the user&#39;s life stories (My Story), interview questions (Q&amp;A), and relationships (People). 
     The question section  320  displays the most recent question that has been posed to the user and various other information associated with the question, including the name and image of the person asking the question, any image attached to the question by the person, and a text input field in which the user can answer the question. The question section  320  also provides question navigation hyperlinks “Previous” and “Next” using which the user can turn to the previous question or the next question that is in the queue of questions that have been posed to this user. The input of the answer followed by a click on the Preview button causes the display of a preview web page, using which the user can either publish the answer as a life story or cancel it. If the user publishes the answer, the server computer  210  saves the answer and the associated image in the mass storage unit  213 . Further, in response to either the publishing or canceling action, the next question in the queue is displayed to the user. The user may also delete a question from the queue of questions by clicking on the “Delete” hyperlink. In response to this action, the next question in the queue is displayed to the user. 
     The image gallery  330  represents the GUI according to a first embodiment of the present invention. It provides the user with a pictorial snapshot of the more recent activities by other users who are connected to the user or by those who belong to a special group defined by the user, e.g., the user&#39;s immediate family or the user&#39;s closest friends. For simplicity in the following description, these other users will be referred to as connected users. The activities that are tracked by the image gallery  330  include recent posts of life stories by the connected users and recent comments made by them to the user&#39;s life stories. 
     In the example of the image gallery  330  shown in  FIG. 3A , two rows of interactive regions for thumbnail images are displayed to the user. The top row corresponds to the most recent posts of life stories by connected users. The bottom row corresponds to the most recent comments that connected users have made to the user&#39;s life stories. When images are not available, the textual information corresponding to a life story or comment is displayed instead. When the user positions a mouse pointer on top of a thumbnail image, textual information of the life story corresponding to that thumbnail image is displayed. The textual information may be the name or user ID of the user who posted the life story or comment and the title of the life story or comment. Excerpts of the text narrative of the life story may also be displayed. The display order of the thumbnail image is determined based on how recent the life story or comment was posted, with the most recent posts being displayed on the left and less recent ones to the right thereof. A click on any interactive region hyperlinks the user to the thread corresponding to that region. A “thread” consists of a post and any comments made concerning the post. The user can input his or her comments to another user&#39;s life story or respond to another user&#39;s comments upon viewing the thread and accessing a hyperlink that is provided for such inputs. 
     In the example of the image gallery  330  shown in  FIG. 3B , four rows of interactive regions for thumbnail images are displayed to the user. The topmost row is the tallest and two interactive regions are provided in that row. The second row from the top is the next tallest and three interactive regions are provided in that row. The third and fourth rows from the top are of the same height. They are the shortest of the four rows and five interactive regions are provided in each of these rows. When images are not available, the textual information corresponding to a life story or comment is displayed instead. The top-left region corresponds to the most recent life story or comment posted by a connected user. The top-right region corresponds to the next most recent life story or comment posted by a connected user. The leftmost region in the second row corresponds to the next most recent life story or comment posted by a connected user, and so forth. When the user positions a mouse pointer on top of a thumbnail image, textual information of the life story corresponding to that thumbnail image is displayed and the image is partially masked. The textual information may be the name or user ID of the user who posted the life story or comment and the title of the life story or comment. Excerpts of the text narrative of the life story may also be displayed. A click on any interactive region hyperlinks the user to the thread corresponding to that region. The user can input his or her comments to another user&#39;s life story or respond to another user&#39;s comments upon viewing the thread and accessing a hyperlink that is provided for such inputs. 
     The image gallery  330  may also include thumbnail images of additional categories of posts. A third category of posts may be those that do not necessarily depict a life story but are instructional, informational, or inspirational in nature. A fourth category of posts may be those that are system generated to encourage users to post their life stories. 
     When the web page that includes the image gallery  330  is loaded from the server computer  210 , the data necessary to generate the image gallery  330  may be retrieved synchronously with (i.e., at the time of) the request for the web page including the image gallery  330 . The synchronous loading method is described in conjunction with  FIG. 5A . If the retrieval time of the synchronous loading method, however, is expected to be too long, an asynchronous loading method described in conjunction with  FIG. 5B  may be used instead. 
     The image gallery  330  is populated with images or replacement text for a user with reference to the notification settings of the user. The account settings or the user profile may be used to specify this setting. The notification options include “E-mail Only” which means that the user will be notified through e-mail but not through the image gallery  330 , “New Threads Only” which means that the user will be notified through e-mail and the image gallery  330  only when new threads are created by other users, and “Any Post” which means that the user will be notified through e-mail and the image gallery  330  of submissions of any posts and comments by other users who have connected to the user. The user also has the option of turning notification ON for individual threads. 
     The inbox  340  displays messages generated by the web site in response to actions taken by the other users of the web site. The messages include notices of actions taken by other users (e.g., “You have been added to group Johnson Family”) and summaries of tasks that the user has been asked to complete (e.g., “Approval required on new post from Father” and “Connection Request from David Johnson”). An icon is displayed alongside each message to help the user quickly identify the content of the message. 
     The collaboration section  350  provides hyperlinks to a web page used to post a life story on behalf of another user and a web page used to ask questions to another user. The identity of the other user is displayed in this section along with that person&#39;s image. Only those users who have given the user sufficient access rights will appear in this section. In the example given here, Jane Johnson has the right to post stories on behalf of Stephen Myers, and Jane Johnson has the right to ask Louis Chang questions. 
       FIG. 4A  is a schematic representation of the web page that is generated by the server computer  210  and transmitted to a user for display when the user selects the My Story hyperlink from the navigation section  310 .  FIG. 4B  is a schematic representation of the web page that is generated by the server computer  210  and transmitted to a user for display when the user accesses the life stories of another user, Sally Johnson. Both web pages provide a navigation section  410  which functions in the same manner as the navigation section  310  of  FIG. 3A . They also include a profile ID section  420 , a timeline section  430 , a life story section  440 , a recent media section  450  and a connection section  460 . 
     The profile ID section  420  identifies the person whose life stories are presented on this web page. The profile ID section  420  also includes hyperlinks to web pages for asking questions (Ask Me a Question) and for posting life stories (Post to My Story). A search feature is provided in this section as well. 
     The timeline section  430  represents the GUI according to a second embodiment of the present invention. It presents the user&#39;s life stories pictorially using images from life stories organized according to a chronology bar  431 . All of the images appearing on top of a specified time period correspond to posts that describe events of that time period. When the user positions a mouse pointer on top of an image, textual information of the life story corresponding to that image is displayed. The textual information may be the name or user ID of the user who posted the life story or comment and the title of the life story or comment. Excerpts of the text narrative of the life story may also be displayed. When images are not available, the textual information corresponding to a life story or comment is displayed instead. A click on any image hyperlinks the user to the life story corresponding to that image. When viewing the life story of another user, the user can input his or her comments to the other user&#39;s life story upon viewing the life story and accessing a hyperlink that is provided for such inputs. When viewing the user&#39;s own life story, the user can edit his or her life story or respond to a comment made by another user upon viewing the life story and accessing a hyperlink that is provided for such inputs. 
     The range of time periods represented by the chronology bar  431  can be changed by clicking on the arrows at the ends of the chronology bar. Clicking on the left arrow moves the life stories back in time and clicking on the right arrow moves the life stories forward in time. The scale of the chronology bar  431  may also be changed using the button controls labeled as “D” for decade, “Y” for year, and “M” for month. As shown in  FIG. 4A , the “Y” button has been selected and so the current scale is year. 
       FIG. 4C  is another example of the timeline section  430 . This timeline section  430  includes a date control section  432 , a chronology bar  434 , a scroll bar  435  underneath the chronology bar  434 , interactive regions  436  for displaying titles of life stories, and an image display region  438 . The date range represented by the timeline section  430  is controlled by the date control section  432  and the scroll bar  435 . As shown in  FIG. 4C , the Year button has been selected in the date control section  432 . Hence, the year is displayed in the date control section  432 . The displayed year can be incremented by pressing the Next button or decremented by pressing the Previous button. Also, the months displayed in the chronology bar  434  can be changed by moving the scroll bar  435  to the left and right. In all cases, the interactive regions  436  for displaying titles of life stories are positioned in accordance with the dates entered for the life stories, and only those titles of life stories having dates within the date range defined by the chronology bar  434  are displayed. When the user positions a mouse pointer on top of an interactive region  436 , the title of the life story corresponding to that region is highlighted and the image corresponding to that life story is displayed in the image display region  438 . A click on any interactive region  436  hyperlinks the user to the life story corresponding to that region. When viewing the life story of another user, the user can input his or her comments to the other user&#39;s life story upon viewing the life story and accessing a hyperlink that is provided for such inputs. When viewing the user&#39;s own life story, the user can edit his or her life story or respond to a comment made by another user upon viewing the life story and accessing a hyperlink that is provided for such inputs. 
     Upon viewing the timeline section  430  of another user, the user may ask the other user a question using the Ask Me a Question hyperlink. The user might do this because an event that was commonly experienced by the two users is not represented in the timeline section  430 , or the user is curious about the events in a particular time period, e.g., childhood, of the other user and finds that there very few life stories for that time period. 
     The life story section  440  provides a display of the life stories of the user. Each life story normally includes a title, the date of the event depicted in the life story, a word account of the event, and an image representative of the event. If a question asked by another user prompted the posting of a life story, the question is also displayed. A life story can be viewed and edited by clicking on the View hyperlink. A life story thread including comments made to the life story can be viewed by clicking on the Comments hyperlink. The life stories shown in the display field are sorted based on the selection made using the View drop-down menu. The available selections include: “Recent” which sorts the life stories chronologically by the event date; “Recent” which sorts the life stories chronologically by the posting date; “Location” which sorts the life stories according to the event location; and “People” which sorts the life stories according to the people depicted in the life stories. 
     The recent media section  450  includes recent images that have been attached to posts and comments by the user. It provides a snapshot of the user&#39;s recent activities at the web site. A click on any image causes the thread containing the image to be displayed. 
     The connection section  460  provides a list of connected users and the date of their most recent activity at the web site. A click on the name or image of any connected user causes the My Story web page of that user to be displayed. 
       FIG. 5A  is a flow diagram that illustrates a synchronous method carried out by the server computer  210  to generate the GUI according to a first embodiment of the present invention. In the example given herein, the web page that includes the image gallery  330  is being prepared by the server computer  210  for transmission to the client computer  220  of User A, and the data necessary to generate the image gallery  330  is retrieved synchronously with (i.e., at the time of) the request made by the client computer  220  of User A for the web page including the image gallery  330 . 
     In step  510 , the server computer  210  begins search of the posts and comments that can be accessed by User A beginning from the most recent. The posts and comments that can be accessed by User A include those post and comments that are submitted by those users who have connected to User A. The posts and comments are examined one by one in the loop defined by steps  512 - 516 . In step  512 , the next most recent post or comment that can be accessed by User A is retrieved for examination. If notification has been turned ON by User A for the thread containing the retrieved post or comment (i.e., if any of the following applies: (i) User A has turned notification ON for any post; (ii) User A has turned notification ON for new threads and this particular thread is a new thread; and (iii) User A has turned notification ON for this particular thread), the flow proceeds to step  516 . In step  516 , a check is made to see if a predetermined number of post or comments has been retrieved (e.g., X=13). If so, the web page containing the image gallery  330  is prepared with the X retrieved posts and comments. If the condition in either step  514  or  516  is false, the flow returns to step  512  where the next most recent post or comment that is readable by User A is retrieved for examination. 
     The flow diagram of  FIG. 5A  represents the synchronous method for generating the image gallery  330  shown in  FIG. 3B . It can be modified so that it represents the synchronous method for generating the image gallery  330  shown in  FIG. 3A , by searching for and retrieving X 1  (e.g., X 1 =5) most recent posts and X 2  (e.g., X 2 =5) most recent comments. 
     The method illustrated in the flow diagram of  FIG. 5B  sets forth steps carried out by the server computer  210  to prepare the data necessary to generate the image gallery  330  in an asynchronous manner. In the example given herein, the data necessary to generate the image gallery  330  shown in  FIG. 3A  is prepared prior to the request made by the client computer  220  of User A for the web page including the image gallery  330  so that the requested web page can be loaded quickly upon request. If User A has turned all notifications OFF, the flow diagram of  FIG. 5B  is not executed for User A. 
     On the other hand, if User A has turned notification ON for any new post or comment, or for any new thread, or for any individual thread, the loop defined by steps  522 - 528  is executed whenever the server computer  210  recognizes that a new post or comment has been submitted (step  520 ). In step  522 , a check is made to see if User A should be notified of this post or comment. If the notification has been turned on by User A for the thread containing this new post or comment (i.e., if any of the following applies: (i) User A has turned notification ON for any post; (ii) User A has turned notification ON for new threads and this particular thread is a new thread; and (iii) User A has turned notification ON for this particular thread), the flow proceeds to step  524 . A new post is stored in the front of User A&#39;s queue of most recent posts (step  526 ) and a new comment is stored in the front of User A&#39;s queue of most recent comments (step  528 ). The flow then returns to step  520 . 
     If the server computer  210  receives a request from User A for the web page including the image gallery  330  shown in  FIG. 3A , the server computer  210  retrieves the first X 1  (e.g., X 1 =5) posts from the queue of most recent posts and the first X 2  (e.g., X 2 =5) from the queue of most recent comments, and prepares the requested web page using the retrieved posts and comments. Because the server computer  210  does not need to execute loop logic and merely retrieves the necessary data from memory, the loading time for the web page that includes the image gallery  330  is accelerated relative to the synchronous loading method. 
     The method illustrated in the flow diagram of  FIG. 5B  can be modified to have a single queue of most recent posts and comments to prepare the data necessary to generate the image gallery  330  shown in  FIG. 3B . In this example, if the server computer  210  receives a request from User A for the web page including the image gallery  330  shown in  FIG. 3B , the server computer  210  retrieves the first X (e.g., X=15) posts from the queue of most recent posts and comments, and prepares the requested web page using the retrieved posts and comments. Because the server computer  210  does not need to execute loop logic and merely retrieves the necessary data from memory, the loading time for the web page that includes the image gallery  330  is accelerated relative to the synchronous loading method. 
       FIG. 6  is a flow diagram that illustrates the method steps carried out by the server computer to generate the GUI according to a second embodiment of the present invention. In the example given herein, the timeline section  430  shown in  FIG. 4A  is generated for User A when User A accesses the My Story web page of User B and modified in accordance with User A&#39;s modifications to the date ranges of the timeline. 
     In step  610 , User A logs in and accesses the My Story web page of User B. The default or the most recently used timeline parameters are then retrieved in step  612 . The timeline parameters include the beginning date and ending date of the timeline, and the timeline scale, e.g., lifetime, decade, year, month. In step  614 , a search is performed on User B&#39;s life stories, and the life stories of User B that User A has permission to view and are within the date range specified by the timeline parameters, are retrieved. The retrieved life stories are used to prepare the web page including the timeline section  430  and the web page is transmitted to User A for display (step  616 ). During preparation of the web page, the server computer  210  determines the display position of each life story in the timeline section  430  relative to the chronology bar  431 , so that life stories with dates are aligned vertically with respect to the date printed on or next to the chronology bar  431 . Life stories with rough dates, such as month/year or just the year, may have the missing months and/or days pre-assigned by the server computer  210  so that they too can be displayed in the timeline section  430 . 
     A check is made in accordance with step  618  to see if any of the timeline parameters have changed, e.g., by a user&#39;s manipulation of any of the GUI controls in the timeline section  430 . If there has been a change, the life story set that was used to prepare the web page is modified in accordance with the modifications of the timeline parameters (step  620 ). For example, if the date range has been expanded, additional life stories are retrieved. If the date range has been shrunk, some of the retrieved life stories are discarded. The flow then returns to step  616 , where the modified life story set is used to prepare the web page including the timeline section  430  and the web page is transmitted to User A for display. Steps  618  and  620  are executed as before. 
     While particular embodiments according to the invention have been illustrated and described above, those skilled in the art understand that the invention can take a variety of forms and embodiments within the scope of the appended claims.
Graphical user interfaces (GUIs) support the collaborative generation of life stories by helping the user view the development of the life stories of other users and facilitating interaction with them through these GUIs. A GUI according to a first type helps the user keep track of recent life stories and comments posted by other users of the collaborative system, and a GUI according to a second type helps the user view life stories of any user in a chronological manner.