1. A computer-implemented method, comprising: collecting highlights of a digital work entered by a plurality of different users via digital work presentation devices, individual digital work presentation devices having a display, wherein the plurality of different users includes a first user and a second user, and wherein the highlights of the digital work include (i) a first highlight entered by the first user to highlight a first passage, and (ii) a second highlight entered by the second user to highlight a second passage; serving the highlights to an individual digital work presentation device for presentation on the display; providing a user interface to enable the first user to craft questions, wherein the questions include (i) a first question pertaining to the first highlight entered by the first user to highlight the first passage, and (ii) a second question pertaining to the second highlight entered by the second user to highlight the second passage; storing the questions in association with the highlights to which the questions pertain; serving the questions in association with the highlights for presentation on the display; comparing the first question to a plurality of questions that pertain to highlights of the first passage, wherein comparing the first question to the plurality of questions further comprises comparing one or more words of the first question to the plurality of questions that pertain to the highlights of the first passage; grouping the first question and the plurality of questions in one or more groups based at least in part on the comparing the first question to the plurality of questions; and facilitating discovery of answers to the questions.
1. A computer-implemented method, comprising: collecting highlights of a digital work entered by a plurality of different users via digital work presentation devices, individual digital work presentation devices having a display, wherein the plurality of different users includes a first user and a second user, and wherein the highlights of the digital work include (i) a first highlight entered by the first user to highlight a first passage, and (ii) a second highlight entered by the second user to highlight a second passage; serving the highlights to an individual digital work presentation device for presentation on the display; providing a user interface to enable the first user to craft questions, wherein the questions include (i) a first question pertaining to the first highlight entered by the first user to highlight the first passage, and (ii) a second question pertaining to the second highlight entered by the second user to highlight the second passage; storing the questions in association with the highlights to which the questions pertain; serving the questions in association with the highlights for presentation on the display; comparing the first question to a plurality of questions that pertain to highlights of the first passage, wherein comparing the first question to the plurality of questions further comprises comparing one or more words of the first question to the plurality of questions that pertain to the highlights of the first passage; grouping the first question and the plurality of questions in one or more groups based at least in part on the comparing the first question to the plurality of questions; and facilitating discovery of answers to the questions. 5. The computer-implemented method of claim 1 , wherein the providing the user interface comprises presenting, on an electronic reading device, a question entry panel in association with a highlight of the digital work, and facilitating the first user to enter a question in the question entry panel.