why is Facebook running Facebook ads promoting Facebook?

You’ve probably seen them, and maybe as a marketer, you’ve been slightly confused as to why Facebook is running promotional ads on its own platform. Luckily, AdAge has investigated, and learned that the ads are a result of an ongoing and open-ended campaign dubbed "Where will your friends take you?" According to Facebook, the campaign aim is to build a better understanding of the brand itself, rather that just its many uses. So our next biggest question is how much ad revenue are they passing up by doing this? We can only guess!