Anobii
Bookshelf
Vital Source Technologies
Book of the Month
Audible – 亚马逊有声读物
Audible, Inc.
Amazon Kindle
Amazon Mobile LLC
Handy Library - 图书馆组织者
Handy Library team
Libby由OverDrive赛阅提供
OverDrive, Inc.
Google Play 图书
Google LLC
Bookmory - 阅读记录, 阅读打卡签到, 读书日历
Tony soft
hoopla Digital
Midwest Tape LLC