Calibre Web - Calibre Web is a web app providing a clean interface for browsing, reading and downloading eBooks...
FlippingBook - FlippingBook changes the way you present your documents
Komga - Media server for comics/mangas/BDs with API and OPDS support.
Scribd - Unlimited books, audiobooks & comics. Unparalleled discovery. Any device. $8.99/month
Ubooquity - Ubooquity is a free, lightweight and easy-to-use home server for your comics and ebooks.
Flipsnack - Flipsnack | PDF to HTML5 flipbooks