5. The method of claim 1 , wherein generating user profiles comprises generating a user profile for a respective user at least by counting occurrences of at least one term in a plurality of conversations for which the first user and the respective user are participants.
5. The method of claim 1 , wherein generating user profiles comprises generating a user profile for a respective user at least by counting occurrences of at least one term in a plurality of conversations for which the first user and the respective user are participants. 12. The method of claim 5 , wherein counting occurrences includes adjusting the counted occurrences based on an internal structure of a respective conversation of the plurality of conversations.