Like Stuff On Facebook? Say Cheese, You're An Ad!
Waxing UnLyrical
JANUARY 26, 2011
.&# The unit will give brand-related action such as a “like&# or a check-in a lot more visibility on Facebook by adding them to an ad unit in addition to users’ news feeds. These “sponsored stories&# will only appear in the news feeds, and sidebar ads, of your Facebook friends, based on your privacy settings.
268 
Let's personalize your content