Cool let me know how it goes! By fill rate, I mean how often an ad is served given the number of requests. I.e. if one the students uses my app and goes to the

Cool let me know how it goes! By fill rate, I mean how often an ad is served given the number of requests. I.e. if one the students uses my app and goes to the screen with an ad on, it'll send a request to the iAd network for an advertisement. Due to my specific demographic it probably won't always have an ad for me, and thus maybe only 1% of all requests will actually feature an advertisement. As such, it might be better for me personally to pursue ads from local companies where the students have a much larger impact. Of course, your app will probably fair better due to more people and a larger demographic!