Would you like your AdSense sites to make a lot more money? The AdSense 100k Blueprint may be the solution you have been looking for. Michael Ullman has put together a 97-page program that walks you through the process of building high yield AdSense websites.
You don’t have to build thousands of $1 a day sites when you target niches they way he does.
Joel Comm is one of the most knowledgeable guys on the Internet when it comes to not only the fundamentals (and some of Google's secrets) about AdSense, but how to make a buck out of it. Read the review of "What Google Never Told You About Making Money With Adsense."
PPCProfitMachine is an AdSense alternative and can also used on the same page as AdSense.