What's your social networking personality? http://mashable.com/2013/02/06/social-networking-personality/
Microsoft creates custom graphics for Twitter users: https://twitter.com/Office/status/299694592545128448
Twitter now lets old tweets be searched: http://blog.twitter.com/2013/02/now-showing-older-tweets-in-search.html
LinkedIn Q4/2012 earning report: http://press.linkedin.com/News-Releases/289/LinkedIn-Announces-Fourth-Quarter-and-Full-Year-2012-Financial-Results
Facebook connect goes down yesterday, brings many sites with it: http://techcrunch.com/2013/02/07/there-goes-the-neighborhood/