I think Amazon could work pretty well. Using Jeremey's numbers, but taking into account Amazon's tiered affiliate percentages, you would actually get 7% assumin

I think Amazon could work pretty well. Using Jeremey's numbers, but taking into account Amazon's tiered affiliate percentages, you would actually get 7% assuming you make 260 sales / month. This gives $819 / month. I run a tutorials site for programmers (its much more loosely focused than your site though, with code tutorials, career advice, a few open source projects I've built, etc.), and my Adwords CPC is similar but Amazon earnings are historically 5-6 times better than Adwords. The key is to link to relevant books within the text of an article. In your case what might work is add references section to each category page that contains links to reviews on books on the subject. Review the book well, describing what type of user the book is geared toward, and only recommend books that you personally stand behind. This problogger article contains some nice tips for getting free review copies of books: http://www.problogger.net/archives/2009/02/14/how-to-get-free-books-to-review-on-your-blog/ http://www.problogger.net/archives/2009/02/14/how-to-get-fre... Good luck to you.