$100 to write Mr Zuckerberg a letter: http://mashable.com/2013/01/11/facebook-message-mark-zuckerberg/

Netflix gets Facebook sharing law passed http://venturebeat.com/2013/01/10/president-signs-vppa-into-law/

Facebook's social login is slipping, Janrain coming up: http://thenextweb.com/insider/2013/01/11/social-login-and-user-managemen...

Twitter rivals Nielsen ratings: http://www.theverge.com/2013/1/10/3861954/twitter-uk-study-real-time-tel...

Social media's strength and weakness: http://pandodaily.com/2013/01/11/social-media-might-drive-brand-awarenes...