One great make money online info blogger site's google adsense account has been cancelled by google. Reason was blogger post similar to adsense ads. There are over 800 uniq visitors per day to this site. Now he is selling ad spaces and make money with his blogger.

It's interesting that Google told the owner of the blog the precise reason why they cancelled his or her adsense account
Usually Google just sends the general, risk to advertisers and users email

Google does not permit to place ads similar to theirs