I think Rabbit Valley does digital downloads too, but I don't know if you gotta do a "publishing deal" with them or something...
Lulu.com is where I bought Hatton Slayden's art books.

Ill have to read deeper on both of them, though it does appear that lulu will just accept anything that follows the rules. Which is quite frankly a lot faster.

Huh. This is of interest to me, also. Hope you get plenty responses.

Yeah! I had a bit of an epiphany lately. A publisher only puts maybe 2-3 of a product in any retail store, because that is how much they expect to sell. Each retail company has maybe 100 locations Get several retail companies to carry a product, and suddenly you are making money.

It's possible something similar might apply to online stores. So i just made a pdf of an art set, and i am putting it on every online store i can get. Instead of being depressed about selling only 3 copies, i could feel kinda badass about selling 100.

I don't know about anywhere to sell.

My lifetime writing earnings are about $10