Re: Wolfram Alpha well, the search engine concept is nothing special, there is a big hype now cause it was developed by mr. wolfram (developer of "wolfram mathematica"), if someone else had developed it maybe nobody would know it but anyway, the search engine is pretty epic. it gives you facts to really everything.
Re: Wolfram Alpha http://www78.wolframalpha.com/input/?i=the+answer+to+everything It's not an search engine like google... If you have a question, you key it in and if you're "lucky" (read: if you question is correctly quoted and in the database) you find your answer
Re: Wolfram Alpha Its not a search engine per say, its more like an Answer-Engine. It's cool but its more for Academics really.