<rant>I'm banned from Adsense. I own 6 domains, and used the same adsense account for all of them. One of them was a blog/photo gallery that I setup to share pictures of my twins with friends and family. My GF also works in an office with 1200+ other people. The links for stuff would get passed around and people would look at them at work and click links.
As far as Google could tell, it looked like one person was committing click fraud and they froze my account. Google's still sitting on like $120 that they owe me and I've appealed several times. Basically adsense can suck my crank.</rant>