Anobii
Bookshelf
Vital Source Technologies
Bookmory - reading tracker
Tony soft
Blinkist: Book Summaries Daily
Blinks Labs GmbH
Handy Library - 圖書館組織者
Handy Library team
Google Play 圖書 - 電子書和漫畫
Google LLC
Storytel: Audiobooks & Ebooks
Storytel Sweden AB
Audible - Amazon出品的有聲讀物
Audible, Inc.
Everand: Ebooks and audiobooks
Scribd, Inc.
GALATEA: Novels & Audiobooks
Inkitt GmbH