How Do Social Networks Use Your Data?

We all know that data is constantly being collected on our behaviour every time we go online, but what exactly is it used for and how is it being collected?  Two very big questions.  Cookies and Advertising are the obvious answers and probably get more than their fair share of attention and angst.  Want to know more?  The following infographic does its best to surface some of the lesser known privacy evils lurking online.

How Social Networks Use Your Data