Besides providing information on search terms, Wolfram does a great job at conversions and answering equations. I was able to convert the value of my pocket change from dollars to yen and figured out what a 20 percent tip would be for a $25.86 meal and how to break that tip up into currency.
At the bottom of the page you can take a look at the sources Wolfram has drawn from to answer questions about your topic, or save your results as a PDF. The PDF is basically a reproduction of the Web site; it would be nice if it was reworked in the future to be more printer-friendly.
I was quickly impressed with the site's capability to return relevant information about my search terms just as fast as Google would refer me to a list of indexed sites. I couldn't help but try to push Wolfram to its limits.