The concept beyond "Library Extension" is simple. As you browse books and e-books websites like Amazon, Barnes and Noble and Goodreads, the Library Extension will check the online catalog of your local library and see whether the book you're interested in happens to be available at your local library. The browser extension currently works on Chrome. Firefox is coming soon. And the browser extension currently has access to data from 4000 local libraries and library systems.
* Amazon (amazon.com, amazon.co.uk, amazon.ca, amazon.de)
* AR BookFinder (arbookfind.com)
* Barnes and Noble (barnesandnoble.com)
* BookDepository (bookdepository.com)
* Chapters/Indigo (chapters.indigo.ca)
* Good Reads (goodreads.com)
* Google Books (books.google.com, books.google.co.uk)
* LibraryThing (librarything.com)
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