I am experimenting with Amazon Associates. I'm not sure if I'll keep up with it or not; but I saw a few sites who were doing this so figured I'd give it a try. If anyone has good/bad experience with it, let me know.
While looking up info on the Queen of Cool, I saw the author page and decided to look up more on Amazon Connect. There's a blog-like function that allows the author to post messages, but also allows us to see latest activity, favorite books, etc. What I like: it includes a link to the author's website.