Using the app you can browse through the network, edit your collections and book shelves that you have set up, and scan books to get their ISBN numbers and easily add them to your own database.
The app is also integrated into the Windows Phone UI, so searching for books in the Bing search app will allow you to open up the book directly in Social Reads through the app screen on the Panorama screen.
Social Reads is a free download, and you can pick it up in the AAWP app directory right now.