Abstract: A system and method for presentation timeline annotation are provided. The system permits an audience member to interact with the presentation using simple inputs, such as key presses on desktop computers or gestures on a mobile device for example, to mark a segment of the presentation timeline with various interactive annotation capabilities including, for example a question, a comment, a rating or a large number of other interactive annotation capabilities.

Abstract: A virtual audience binning system and method are described. The system and method dynamically labels a group with information derived from its current participants and possibly their conversations through data mining. Then, new audience would use this contextual information to decide their relevance and interest with the groups. Furthermore, using the system, the quality of virtual binning increases with number of participants that solves the problem of size so that it is a solution that's built to work at scale. The virtual audience binning may be used with an online presentation system that generates and displays webcasts and virtual events to the audience members.