Patent ID: 8245134

Claim:
A system for differential dynamic content delivery, the system comprising at least one computer processor, at least one computer memory operatively coupled to the computer processor, and computer program instructions disposed within the computer memory capable of: identifying a presentation document for a presentation including a presentation grammar and a structured document comprising structural elements classified with classification identifiers; creating a user name list for a session document of a presentation session, including identifying a user participant among a plurality of user participants for the presentation session, wherein the session document includes a session grammar and a session structured document, each of the plurality of user participants having a user profile comprising user classifications each having classification identifiers and user interests, the user interests comprising data fields for storing data values indicating user interest in one or more subjects of the presentation; filtering the structured document in dependence upon the user classifications and the classification identifiers of the plurality of user participants; receiving from each of the plurality of user participants on the user name list at least one data value indicating user interest in one or more subjects of the presentation; storing the session document including the user classifications and the classification identifiers of the plurality of user participants.