Internet Archive: Digital Library of Free Books, Movies, Music & Wayback Machine. Here is COPS : Calibre OPDS (and HTML) PHP Server - Technology and me. Why ?
In my opinion Calibre is a marvelous tool but is too big and has too much dependencies to be used only for its content server. That's the main reason why I coded this OPDS / HTML content server. I needed a simple tool to be installed on a small server (Seagate Dockstar in my case). I initially thought of Calibre2OPDS but as it generate static file no search was possible. The rise of e-reading. Released: April 4, 2012 By Lee Rainie, Kathryn Zickuhr, Kristen Purcell, Mary Madden and Joanna Brenner One-fifth of American adults (21%) report that they have read an e-book in the past year, and this number increased following a gift-giving season that saw a spike in the ownership of both tablet computers and e-book reading devices such as the original Kindles and Nooks.
