17. The method of claim 13 , wherein the profile information further includes the user's connections' tag affinities and wherein selecting questions based on tags related to the selected topic further comprises selecting questions based on tags corresponding to the user's connections' tag affinities.
17. The method of claim 13 , wherein the profile information further includes the user's connections' tag affinities and wherein selecting questions based on tags related to the selected topic further comprises selecting questions based on tags corresponding to the user's connections' tag affinities. 18. The method of claim 17 , wherein for each of the questions, determining a score further comprises: for each of the questions, determining a score for the question by combining the user's tag affinities for the tags associated with the question and the user's connections' tag affinities for the tags associated with the question.