9. One or more computer-readable storage media devices having computer-readable instructions thereon which, when executed, implement a method comprising: providing an application that is not primarily an instant messaging application or email application; providing, through the application, one or more objects having at least one strongly typed tag and at least one changeable property, the at least one changeable property being a name, wherein different names associated with a same unique ID are automatically resolved to the same unique ID independent of a user resolving the different names, wherein strongly typed tags uniquely associate tags with an individual or group of people; presenting, through the application, a navigation tree comprising a tag node that is expandable to expose a list of previously created tags which are usable to tag the one or more objects; and using one or more strongly typed tags from within the application to provide at least an instant messaging functionality or an email functionality for the user, wherein provision of the instant messaging functionality or the email functionality is accomplished by presenting a user interface element that gives the user a choice to select between functionalities including the instant messaging functionality or the email functionality.
13. The one or more computer-readable storage media devices of claim 9 , wherein at least some of the objects comprise photos.