same reason people are interested in popurls or the NYTimes' most-emailed-articles.. it's a filter. Throw up some google ads... If there weren't horrible priva

same reason people are interested in popurls or the NYTimes' most-emailed-articles.. it's a filter. Throw up some google ads... If there weren't horrible privacy implications, I'd be curious to see what would happen if AIM or gTalk mined their IM traffic and threw up the most popular/IM'ed links...