A site of mine has been banned 2 weeks ago for the reason of ad mimicking. It's like your content and ads should'nt be same color although if there is a line between them. So how about this, Ask.com is using adsense with completely camuflaged ads within the content. Check this; ask.com/web?q=Free+Government+Credit+Report&qsrc=6&o=0&l=dir First five results are google ads. What do you think ?