Wolfram Alpha

Basically its' a search engine but with a difference, in normal search engines once you input the query, links are generated from which you might get an answer for your query. But in this case, it wades through huge databases of information to throw accurate results and answers to queries, instead of a link where you "might" receive an answer to your query as in conventional search engines like google and MSN.

It's pretty cool do check it out.

And here is a query that I tried out and the info was generated pretty quick.

Is it going to be a google killer? I am keeping my fingers crossed because it is still in alpha stage and is pretty limited in scope. And also the small thing of how they will generate revenue based on this model is something which'll tell us a lot about the acceptance from the public at large.