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

To celebrate this day of wine and roses, Marketplace Tech wants to know the most romantic — or least romantic — text, tweet or social media message you've ever received.

Starting Wednesday, American Express customers who link their cards to their Twitter accounts will be able to make purchases with a tweet.

Twitter's purchase of the research company Bluefin is about gathering the sort of social media info that can be used to extract more money from advertisers.

Twitter new acquisition, Vine, allows users to share short videos. And, privacy advocates are demanding Skype be more transparent about what data it shares with the government.

A mystery invitation to 'come and see what we're building' is generating plenty of buzz for Facebook.

Under a new California law, it is illegal for employers or admissions officers to require applicants to hand over their social media usernames and passwords.

Gizmodo's managing editor Brian Barrett talks his tech predictions for 2013, and Lettrs.com offers a new way to trade old school correspondence online.

A third of 18- to 24-year-olds do.

A new patent for Xbox Kinect might be trying to watch you for copyright owners, and users are getting tired of politics on social media, even though they're still posting about it.