Tip of the Week: ReTweetability.com by Chris Trayhorn, Publisher of mThink Blue Book, March 10, 2009 Check your ReTweetability index on Dan Zarella’s new site: www.retweetability.com. It ranks Twitter users on “the infectious power of their Tweets.” It takes account of number of followers and number of Tweets per day to arrive at a single measurement of who is the most ReTweetable. Filed under: Revenue About the Author Chris Trayhorn, Publisher of mThink Blue Book Chris Trayhorn is the Chairman of the Performance Marketing Industry Blue Ribbon Panel and the CEO of mThink.com, a leading online and content marketing agency. He has founded four successful marketing companies in London and San Francisco in the last 15 years, and is currently the founder and publisher of Revenue+Performance magazine, the magazine of the performance marketing industry since 2002.