Distribution from Lulu.com - well, things change all the time. If this chart is complete, your print books only show up through Amazon and you have to pay to get them into Ingram, which will take it to BN.com, etc.
However, the ebooks go right off the bat to all the biggies.
This still leaves Smashwords for picking up everything else (which means original content ONLY, no PD or PLR copy.)
Still, with Kobo now independent, that gives us yet another outlet to publish through... (A list of other feeds for Kobo still needs investigating.)