http://linuxphilia.blogspot.com/2012/06/my-wife-and-i-like-to-read-books-on-go.html
http://dearauthor.com/ebooks/create-your-own-cloud-of-ebooks-with-calibre-calibre-opds-dropbox/
Someone has finally created a Web Interface for calibre. (link)
http://blog.slucas.fr/en/oss/calibre-opds-php-server
https://www.digitalocean.com/community/tutorials/how-to-create-a-calibre-ebook-server-on-ubuntu-14-04