Books identification it's a project to organize and categorize your ebooks (pdf and chm files).

Books Identification is a free, web-based ebooks organizer, categorizer and searcher, providing ubiquitous access to your books. Use it to share your ebooks with friends, or to read to your own books at work. Is designed to handle very large ebooks collections (hundreds of gigabytes). The intuitive web interface, as well as search and index facilities, are optimized for efficient browsing through large book libraries.

Based on Java technology, Books-Identification runs on most platforms, including Windows, Mac, Linux and Unix variants.