The Ticker: Facebook’s new Page messaging; Viral immunity; MTV’s poli-fantasy game; Tumblr tips; Twitter terrorism

The NextWebFacebook introduces private messages between business pages and fans

Wired’s EpicenterAre We Immune To Viral Marketing?

MashableMTV’s ‘Power of 12′ Campaign Creates Fantasy Political Election Game

Social Times5 Tumblr Tips For Microblogging Success

SalonCan the U.S. Government close social media accounts?