I recently self-published two books via Lulu.com. My books are now available from Amazon.com:
Illinois Central: a Guide to Genealogical Research in Springfield, Illinois
The Missouri State Guard: a Selected, Annotated Unit Bibliography
Both books sell for $19.95 per copy. An 11-page preview of each book is available for viewing on the Lulu.com website. Amazon.com is asking $3.99 per book for shipping and handling, although if your order totals $25.00 or more you qualify for free Supersaver Shipping.