Facebook is testing in-app mobile ads that look nothing like Facebook ads, using an undisclosed number of ad networks to serve banners and interstitials. It takes the company and its trove of personal information one step closer to forming an ad network of its own. Facebook said the ad exchanges won’t be able to access its users’ personal information. The move in mobile is in line with recent comments by Zuckerberg, who said at TechCrunch Disrupt, “We’ve transitioned now and we are a mobile company.”

Find out more at Ad Age.