President Obama hosts Google Hangout tomorrow: http://googleblog.blogspot.com/2013/02/fireside-hangouts-join-president-obama.html
Grammys stats dwarf Super Bowl on Facebook: http://techcrunch.com/2013/02/11/facebook-grammys-and-super-bowl/
Mobile tweeters are more often tweeters: http://advertising.twitter.com/2013/02/new-compete-study-primary-mobile-users-on-Twitter.html
AmEx and Twitter team up for hashtag payments:https://sync.americanexpress.com/twitter/Index
Facebook on social content discovery: http://allthingsd.com/20130212/facebooks-rose-content-discovery-has-always-been-social-and-it-always-will-be/?refcat=social