I've been working some on a new version of BookKit CFC and decided to do a little experiment while I was at it as a proof of concept. Bookster is an experimental site that treats the relationships between Amazon books in a manner similar to "Friend of a Friend" networks such as Friendster, Tribe, and Orkut. For now you can only "see" one degree of separation, but I am planning on some additional levels of relationships soon. I've also used this project as an opportunity to refine my skills at writing valid XHTML and CSS. Bookster validates as XHTML 1.0 strict and should work in most current browsers.