These three advertising networks focus exclusively on Facebook and work like any other ad network, just copy and paste the code in your application.

fbExchange is an example of an advertising network that pays you on a CPC model. You simply add their code to your application and you are generating revenue.

Cubics is an example of an advertising network that pays you on a CPM model, a set price for every 1,000 advertisements displayed. As of the writing of this article they are paying 33 to 81 cents per 1,000 views.

Appsaholic is part of the Social Media network and is not currently accepting publishers as of the writing of this article. However, you may buy advertising on a CPC model.