This site seems like it has some good advice and free
How to Make Money With Google Adsense: “Anyone who owns or is thinking about creating a website would be crazy to ignore this.
I am happy to say that making money with your site, no matter the topic, has become easier than it’s ever been before – and it’s 100% legitimate.
If AdSense had been available in 2000, I would have NEVER shut down my soap opera fan site that received 200 hits per day. I would have been able to earn money from that traffic and probably turned a small profit.
Untold Facts About AdSense you need to know in order to succeed with the program!
Yes, the money can be great, but if you don’t learn how to build a site that attracts targeted traffic then you won’t make much from AdSense.
Don’t pay a cent for these ‘Get Rich Quick’ books on AdSense. Many of them are all hype. Learn all you need to know for free.”