Hey. I've discovered the amazingness of etology. I have been using them on camelstyle for a few months, and I'm realy satisfied.
The main advantage i see with this compared to adbrite and adengage is the wide possibilities to customize the ad zones. You can make them any size you want, as many or few links as you want. customize everything.
You can also create banner ad zones in 15 different sizes. and let them take care of selling your ads. And the best thing is, even if you don't sell all your adspace, they will display network ads, which pays per click. It's wonderful.
http://www.etology.com/index.php?EID=25254
noref:
http://www.etology.com (don't click this if you got love in you)