Like Stuff On Facebook? Say Cheese, You're An Ad!
Waxing UnLyrical
JANUARY 26, 2011
A “page post,&# i.e. when an advertiser buys a “sponsored story&# to further distribute something they’ve posted on their page – so it goes into your news feed and in the ads you see on the right sidebar. ( You cannot opt out of your activity being turned into advertisements. You read that right.
268 
Let's personalize your content