The first major player in print on demand for self-publishers—and still one of the largest of all—is Lulu.com. Since their founding in 2002 by Bob Young,
Lulu has published over 1.1 million titles by creators in over 200 countries and territories and adds 20,000 new titles to their catalogue a month.—Wikipedia
click the link above to read the full article
I first self published through Lulu and they remain my choice for trying new approaches due the ease of use and flexibility, and the new ebook offerrings are worth exploring!
If you are nto familiar with this key player in the publishing arena, please sop by their website and check out the authors who are featured in Lulu Author Spotlights! (I am pleased to be counted among them!)