Still in Beta, Amazon is developing a new search engine aimed at dethroning Google.
Actually the search engine is based in part on Google technology, but boy is it slick! Here are some of the features:
A9.com remembers your information. You can keep your own notes about any web page and search them; it is a new way to store and organize your bookmarks; it even recommends new sites and favorite old sites specifically for you to visit. With the A9 Toolbar all your web browsing history will be stored, allowing you (and only you!) to retrieve it at any time and even search it; it will tell you if you have any new search results, or the last time you visited a page.<BR>
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)
Movies (Internet Movie Database)
Reference (definitions, encyclopedic entries and other topics by GuruNet)
Learn more about the search features on A9.com
In addition to these sources, your personal history, diary, and bookmarks will also be searched automatically, as described below.
You can try it yourself. I have and I was very impressed.