To be honest, the blogs did have some crappy content. I would be happy to pull the ads off the bad blogs and put them back on dodgit, a service I have lovingly maintained for 7 yrs. Sadly there appears to be no way to appeal to Google once they drop the axe.
I'm pondering next steps. I know a few people who work at Google but haven't contacted any of them yet. I've played around with adbrite and some other ad networks, but none of them seem to generate money the way adsense can.
I've also created a number of websites that generate revenue over the years, that aren't dependent on adsense in any way. I'll definitely make more!