I've been keeping an eye on Hey! Nielsen (lovely name, but the way), a place for TV fans to voice opinions about TV programming that opened last September. Nielsen's intent is to figure out how to incorporate the feedback into its ratings: "Using data from real users, Hey! Nielsen generates a Hey! Nielsen score -- a real-time indicator of a topic's impact, influence, and value. As users submit feedback, the score is created from a number of factors such as user response, blog buzz, and news coverage, as well as raw data from our sister sites Billboard.com, HollywoodReporter.com, and BlogPulse.com."
Funny, Tetris has a way higher buzz rating than GTA IV (111 to 28), even though BlogPulse shows otherwise.