16. The tangible, non-transitory computer readable storage media of claim 15 , wherein the instructions operable to locate the unexplained abbreviation comprise instructions operable to locate the unexplained abbreviation in audio presentation content utilizing speech recognition.
15. One or more tangible, non-transitory computer readable storage media encoded with software comprising computer executable instructions and when the software is executed operable to: analyze online collaborative session participant content, wherein the currently presented content was provided to the online collaborative session by a presenter; locate an unexplained abbreviation in currently presented content in an online collaborative session system; retrieve a plurality of definitions for the unexplained abbreviation from an abbreviation definition database, wherein retrieving the plurality of abbreviations from the abbreviation definition database comprises retrieving for each of the plurality of definitions a value correlating an abbreviation with the presenter of the presented content; select a definition from the plurality of definitions by determining a first possible definition from the plurality of definitions that was previously used by the presenter in conjunction with a first subset of participants to the online collaborative session in at least a first previous communication between the presenter and the first subset of participants, determining a second possible definition from the plurality of definitions that was previously used by the the presenter in conjunction with a second subset of participants to the online collaborative session in at least a second previous communication between presenter and the second subset of participants, and selecting the first possible definition in response to the first subset of participants having a greater number of participants than the second subset of participants; and present the definition selected from the plurality of definitions with the currently presented content through the online collaborative session system.