3M (http://solutions.3m.com/wps/portal/3M/en_WW/LibrarySystems/Global/)

Amazon Kindle Direct Publishing KDP

Apple iBookstore

Baker and Taylor

Barnes and Noble’s Nook

BookBaby

Draft2Digital

EbookPartnership

EBSCO/NetLibrary

Google Ebooks

Gumroad

Ingram Library

Kitaboo

Kobo Writing Life

OverDrive (http://www.overdrive.com)

PigeonLab

Smashwords

StreetLib

Lulu

Vearsa

Youcanprint