FastClick also offers PopUnders, which can create additional revenue. You could also use a FastClick campaign as your google_alternate_ad_url.
I tried them... I pissed of a few people and stopped using them Didn't know that, thanks. I have been using Fastclick for a few months now on other sites. I am curious what kind of earnings you have made compared to AS. For me it's 1% FastClick 99% Google. Equal banner coverage on the same site. The Fast Click banners actually get more clicks. I am beginning to believe that Google is going eliminate all competition with the revenue they share with publishers. Then what?
That is a good question. I have heard no feedback, negative or positive from an advertiser's perspective. If you go to the sign up http://www.fastclick.com/advertise.html I see no testimonials as Google has and other affiliate programs. If anyone is an advertiser with Fast click I would appreciate knowing your experiences...good and bad