Mark A R Kleiman...
Center for American Progress
Mark Kleiman, of The Reality Based Community, was an identified member of JournoList - an email group of approximately 400 "progressive" and socialist journalists, academics and "new media" activists.
JournoList members reportedly coordinated their messages in favor of Barack Obama and the Democrats, and against Sarah Palin and the Republican Party. JournoList was founded in 2007 and was closed down in early 2010.