My favorite part of TwitReports is the "Follower Crossover" information:
Assume a user "Joe" and a user "Ed". Ed follows Joe. Joe might want to know 1) Does anyone I follow also Ed? 2) Who else does Ed follow that I also follow? 3) Who is following both of us? is there a web site out there which shows this information already if I put in two Twitter names? Don't want to reinvent the wheel :-) TjL
