Visiting The Adsense Help Center Is Always The Best Start

Mostly when I first joined the adsense site I found the adsense help center to be the most helpful part of the adsense experience and it gave some good pointers as to what works best according to other publishers who have been doing the adsense income earning thing for awhile.

And the adsense help forum is another source of good information, you'll have to sign in because the forum is located on google groups.

I always advise help you can actually find on the site itself first before you go off and try elsewhere, as something may have been answered already on the adsense help sections, but there are other great adsense tip sites out there.

Adsense Earning Ideas - 3 ways to earn income using adsense