Issuu - Issuu is the leading digital publishing platform delivering exceptional reading experiences of magazines, catalogs, and newspapers.
Calibre Web - Calibre Web is a web app providing a clean interface for browsing, reading and downloading eBooks...
Zinio - Zinio transforms your favorite print magazines into digital format. Same content. Same design.
Komga - Media server for comics/mangas/BDs with API and OPDS support.
Readly - All-you-can-read magazines on all your devices
Ubooquity - Ubooquity is a free, lightweight and easy-to-use home server for your comics and ebooks.