I just found out something really interesting. cl1p.net makes about the same in cpm as a top 50 blog. (I made $1.37cpm last year, he made $1.39cpm) This is really interesting, because I always thought that adsense works way better on blogs then it does on tool sites.
But this must be wrong. We both target a tech audience, perhaps the audience matters more then the content of the site?