Booklist

Shelfari allows users to list the books they own, as well as books they are currently reading, for free. They also provide a Flash-based plugin to put on blogs (though this doesn't work with WordPress). However, for those who prefer a more light-weight and customizable view of the books they are... Platforms: PHP

GutenPy project is a comfortable text reader and catalog browser for Project Gutenberg. GutenPy is written with Python GTK2, so all those nice clean fonts are available. This also allows it to run well on both Windows and Linux. It features handy bookmarking, line numbering, and word definition... Platforms: *nix