That’s how much revenue analysts expect social media sites to generate in 2012. A bit more than half of that is in advertising. (That’s all?) Social Times reports.

Mashable lists five ways you can help the victims online.

It may be taking root, according to this infographic.

Here’s a complete list.

Clean up your Facebook and LinkedIn profiles: 92 percent of U.S. companies use social networks and social media to recruit talent, up from 78 percent five years ago, according to new research from recruitment platform Jobvite. AllFacebook reports.

Even if those numbers are inflated, the takeaway is clear: Assume that anything and everything you post online can and will be seen by your potential (or current, for that matter) employer.

Ready … set … delete.