Issuu - Issuu is the leading digital publishing platform delivering exceptional reading experiences of magazines, catalogs, and newspapers.
CHMPane - CHMPane is a Java program to process compiled html (.chm) files.
Scribd - Unlimited books, audiobooks & comics. Unparalleled discovery. Any device. $8.99/month
Icecream Ebook Reader - Ebook Reader by Icecream Apps allows to read ebooks in several formats (EPUB, MOBI, FB2 and others). Download EPUB Reader for Windows.
Foleon - Quickly create jaw-dropping communication assets your audience won’t easily forget. Make it interactive, measurable, and perfectly responsive.
Okular - Okular is a universal document viewer based developed by KDE.