Books Virtual
BooksVirtual
Google Play 图书
Google LLC
Readict -One Click Away Novels
VitalTek, Inc.
NovelFlow
rnovel
Amazon Kindle
Amazon Mobile LLC
Libby由OverDrive赛阅提供
OverDrive, Inc.
Audible – 亚马逊有声读物
Audible, Inc.
hoopla Digital
Midwest Tape LLC
Radish Fiction
Tapas Entertainment Inc.