Libby,由 OverDrive 出品
OverDrive, Inc.
OverDrive
hoopla Digital
Midwest Tape LLC
BorrowBox Library
Bolinda digital
cloudLibrary
Bibliotheca Ltd
Everand: Ebooks and audiobooks
Scribd, Inc.
Audible - Amazon出品的有聲讀物
Audible, Inc.
Deseret Bookshelf
Deseret Book
Goodreads
Barnes & Noble NOOK
Barnes & Noble