Multiple users access a collaborative data-sharing system during a data-sharing event. Each user can establish the level of sharing to be allowed with each other user and filtering criteria for filtering the data before it is provided to the other users. Data can be extracted from a number of different sources, including data input by other users and/or previously created information sources. For example, slides from a presentation on a similar topic may be identified and included by a user as a potential source of information to be used by other users. Shared data can be displayed on devices used by users to communicate with the collaborative data-sharing system. A user can selected data provided by the collaborative data-sharing system, which was obtained from the data input by other users and/or from the identified additional data sources and added to that user's data as data entered by that user.