Commentator Julia Angwin says erosion of privacy on Facebook left her little choice.

Blackberry is back, with the launch of two new phones it hopes will revive the struggling smartphone company formerly known as Research in Motion. Facebook is working on best practices in an emerging area of social media -- suicide prevention. And, the military is using brain scans on new recruits -- canine recruits.

Facebook's new Graph Search feature has rivals like Google and Yelp paying attention to the social media giant. And, a look at a piece of mysterious malware called "Red October" that has been secretly attacking government computer systems for five years.

Facebook CEO Mark Zuckerberg announced the rollout of a new, seemingly obvious feature: search. With one billion users and a lot of data, Facebook has a private trove to mine.