LibraryThing
LibraryThing.com
Bookshelf-Your virtual library
SquidBit
Libib
Libib, Inc.
Libby由OverDrive赛阅提供
OverDrive, Inc.
Handy Library - 图书馆组织者
Handy Library team
Library For All
Library For All AU
Bookshelf
Vital Source Technologies
hoopla Digital
Midwest Tape LLC
Google Play 图书
Google LLC
iCollect Books: Library List
iCollect Everything, LLC