What are your thoughts on the AADND book exchange program? 

Here is a section of text from Dave Redding's Blog
First off, were starting a book exchange.  The exchange system works on points, and each book will have a specific value.  It's real simple.  Any book after '00 when donated is worth yy in points, when taking books out, they are valued at yy*2. 

You earn points by brining in books, attending the meetings, bringing friends, blogging about the meetings, asking some questions pretty much for anything you do with the UG.  It's all about the free (or nearly Free) swag, and we'll have them listed on the site once we get em' catalogued.