Amazon A9.com search
http://a9.com/
A9.com provides several sources of information with a customized multi-column interface. The list of available sources appears as buttons on the right side of the search results page. Clicking on any button opens a new column on the same page (clicking the button again will close that column). You can adjust the size of the columns by dragging the borders to the left or right [learn more]. The arrangement of open columns and their relative sizes is automatically kept for the next search.
The current list of searches (and their sources) includes:
* The web (Google)
* Search Inside the Book™ (Amazon.com)
* Images (Google)
* Movies (Internet Movie Database)
* Reference (definitions, encyclopedic entries and other topics by GuruNet)
* Learn more about the search features on A9.com
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