Over on the Chronicle, City Insider figured out the key to the Board's vote on the Twitter Tax Break: "The more you tweet, the more likely you were to vote for Twitter." (As if that were a hard code to crack.) The formula holds true for the social network-friendly supes like Jane Kim or David Chiu - and it even predicted the somewhat surprising vote from prolific twitster Eric Mar. (Although, he might have been focusing more on the tax break for Burning Man.) We expect it's only a matter of time before Zynga predicts their own sweetheart deal by checking which supes spend the most time playing Cityville. [CityInsider]