I got banned from using Google adsense on my site

Iff you have been banned, Do not expect to be able to use the service again, They have all your infomation and can detect when people are trying to cheat the system.

I actually got my account re-instated, all I did was email in that I thought I hadn't done anything.

EDIT: They took off a few dollars that they said wasn't legit, however.

maybe your site is contain some bad content like porn

Did you try go against Google's TOS? Please read it thoroughly.

I have had an associate do a similar thing, wrote an apologetic email explaining that he didn't think he had done wrong and they shaved some of his commission off but was reinstated.

PPP looks to give adsense a good run for money though with release on Feb 1 2008. Get in early for that.

I got a warning when I first added adsense to a site. I naively clicked on a couple of text links to see where they lead (don't ask me why) I've never touched them since. I was gutted when I got a warning letter - I thought I was going to get flicked for sure.
I've heard of other people in wireless hot-spots getting caught too, even when they've used a totally different ISP... so beware, and leave well alone.

I think its over. Forget google adsense. There going down too.

Google AdSense isn't going down? It is just getting harder to get high CPC's.

Good luck. And yes, there are plenty of other sources out there for ads. Google isn't the only game in town. (see link in my signature)