Google Product Search, formerly known as Froogle, is integrated with Google book search engine. Google shows a the list of stores where you can find a certain book, a summary of the book, the table of contents, references from the web and related books. There's also a link to Google Book Search, where you can preview and search inside the book.
Panlibus points to a cool tool called “Zoomii”, which is basically a virtual bookstore for Amazon books, where books are displayed on virtual real shelves for you to browse. By using the mouse to zoom in and out, and drag left, right, up & down, in a way that feels natural it is a totally different experience.
Source:→ Google System