Former Mayor Ed Koch is working on cleaning up the state government with the non-partisan coalition, NY Uprising, so he's taken to Twitter to get the word out, he's @mayoredkoch . Besides calling fellow Tweeps "Citizen," he's happy to give them what they want. The WSJ's Metropolis blog points out that Koch is an old hand at YouTube, what with his video reviews of movies like Avatar and Just Wright as well as Betty White's SNL performance. [Via reader Martin-thanks!]