If rumors are true, Amazon appears to be systematically removing POD books by indie authors who used AuthorHouse, Lulu, Booklocker, etc. Personally, I would not use any of those *middle-man* sites. If you are planning to self-publish a pbook, ask me about the best way to go. There is too much information for me to share here.
Marie Kazalia
Transmedia Artist Marketing
http://Transmediartistmarketing.org/wordpress
email: MarieKazalia@gmail.com