"Apple announced that they're dropping their affiliate program commission from 7% all the way down to 2.5%"

TouchArcade:

While ad sales dropped off significantly, referral links still did pretty good. Any time you clicked a link on TouchArcade, the TouchArcade forums, or inside the TouchArcade app to grab a game on the App Store, we got a tiny percentage of that sale as a commission payment from Apple. This also saw a significant drop with the advent of free to play, as 7% of $0 is, well, $0. We post about a ton of premium games because that's largely what we (and our community) are interested in, so while there was a decline, it wasn't as severe as ad sales.