Big Alternatives?

Okay everyone, now, my upcoming network of sites isn't too far away and I've only recently remembered that AdBrite (the ad network I was with last year) closed their doors a few months back. Now, can anybody recommend any viable alternatives, aside from the obvious AdSense?
The reason why I won't use AdSense is that they limited a good real-life friend of mine. All of his earnings were legitimate and he earnt over $20,000 one month, and bam… they limited him and he never saw his money. I'm…
Big Alternatives?

See original post by Matthew H