Advertisers can setup advertisements for specific groups and interests. It is the most focused and powerful ad tool out there, which is why we are surprised at their weak showing since their IPO.
So we were setting up an ad for our super cool Commie Obama Hats, and the FB system gave us this market size:
That is something our Dear Leader wishes to be true!
The number is far higher, and we're actively putting more hats on heads thanks to Facebook.