US Patent 9514199 Sorting and pagination of content item streams

A system and machine-implemented method including receiving a request for a set of content items within a session, identifying, in response to the request, one or more content items, determining if the session is associated with a continuation token, wherein the continuation token provides information regarding the content items provided for display during the session, generating a continuation token for the session when the session is not associated with a continuation token, providing at least one of the one or more content items for display and updating the continuation token with information regarding the at least one of the one or more content items provided for display and a time stamp.