Book Cataloguing & Social Network Sites
Automatic book details and cover art. Just enter ISBNs or scan ISBN barcodes. Easily add books to your database. Book Collector Connect
Goodreads - A booklovers social networking website
Why Goodreads Gave Up on Amazon Goodreads, the social network for reading and reviewing books, had to make a change this month. It moved away from its main source of book data, the Amazon Product Advertising API, citing its "many restrictions." It completed the transition to Ingram Book Company's data today, and it also draws from other open data sources such as libraries. The transition went smoothly, but Goodreads did lose some data.
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LibraryThing | Catalog your books online
Welcome To FlipShelf: Catalog Your Books, Dvds, Video Games and Comics Online