I found this post like a start to make money online.
First one from DoshDosh tells you how to Build an Online Empire with 16 Types of Websites You Can Create for Profit.
This is a good starting point. What I retain is:
Adsense, Affiliate and Paid Membership.
If you choose the Adsense way, subscribe to Adsense Blog
If you choose the Affiliate way, then add to your rss reader The 10 Top Affiliate Blogs of 2007
If you choose the Paid Membership way, then read Building Paid Membership Sites for Money: Teaching Sells Review