WolframAlpha

If you haven't already visited wolframalpha.com, I highly recommend that you give it a try. WolframAlpha is a computational database -- I think that is what I would call it -- that allows you to quickly associate random bits of data, or access concise summaries of information. Want to know what the moon phase was on the day you were born? Type in your date of birth and it will tell you. Want to know the mass of Jupiter? It can tell you that and much more.

While not a search engine, you can interact with it the same way up to a point. You may need to rethink your search strategies a bit if you are used to using Google for most of your information retrieval. The nice thing about this new tool is that rather than provide you with a link to a web page, as Google does, WolframAlpha gives you the information you are looking for right on its search page.