1. Big Book Search helps you find exactly what you're looking for. Browse books, CDs, DVDs, and more, by their cover. High resolution cover images provided by Amazon. (Go2Web20.com)

2. A bustling community built around millions of book and author pages, Bookarmy lets you organize, plan and share your reading life on the web. Create a virtual bookshelf of favorite reads – share and compare your own tastes with others. Connect with your favorite authors - join online reading groups and author-led web-chats. See what your friends are reading - swap reviews and recommendations with people you know. (Go2Web20.net)

3. BookLamp is a system for matching readers to books through an analysis of writing styles, similar to the way that Pandora matches music lovers to new music.(Go2Web20.net)

4. BookRix is an Internet portal where anyone can place their own books, short stories, poems etc. to be laid out just like a proper book, published on the net, promoted and sent out to friends. (Go2Web2.0)

5. LibroSpot is a book logging service. Users list and manage their books. The capability to share with others is available. Users can create a wishlist and go to a blog section for book reviews.

6. Booktagger is an online bookshelf application to list the books you've read and to share them with others. Discover books to read by browsing others' bookshelves, list the books you've read and want to read and much more. (Go2Web20.net )

7. Digital Magazines, eBooks and virtual catalogs: transform automatically your PDF files into a WoBook for free. (GoWeb20.net)

8. If you're passionate about books, movies, TV, music, and video games, enter Amazon Windowshop - a destination for discovering what's new and hot in the world of movies, music, and more (Go2web20.net )

9. Mixbook allows you to create books with your friends and family about memorable events, the everyday moments and all the things that are important in your life. You can collaborate with others to design custom books that Mixbook will print and ship right to your door - for you to keep or to give as a gift. Mixbooks can be shared online or as coffee-table quality printed books. (Go2Web20.net)

10. PDFGeni is a dedicated PDF search engine for PDF eBooks, sheets, forms and documents. (Go2Web20.com)

11. Tikatok is a community for children to write illustrate, and publish a real book. With Tikatok, becoming a published author is easy. Just write a story, illustrate it and order as many copies as you want. Tikatok features a suite of free teacher tools and has seen over 1000 teachers register to run bookmaking projects in their classrooms.(Go2Web20.net)

12. VuFind is a library resource portal designed and developed for libraries by libraries. The goal of VuFind is to enable your users to search and browse through all of your library's resources by replacing the traditional OPAC to include:- Catalog Records- Digital Library Items- Institutional Repository- Institutional Bibliography- Other Library Collections and Resources. (Go2Web20.net)