News feeds are one of the main features of Facebook. After all they might represent the Facebook answer to AdWords, with targeted ads based on the profile of the users and their social network.

At the same time, news feeds reveal a lot about yourself to your social networks and it is important to understand the implications for your privacy such as Facebook’s News Feed Knows What You Did Last Summer.

John Battelle reports some links and describes some of the implications both for Facebook users and Facebook itself.