Wolfram Alpha Computational Knowledge Engine

[Amicale]

http://www.wolframalpha.com/

This thing is pretty cool. From the site description: "Answer questions, do math, instantly get facts, create plots, calculators, unit conversions, scientific data and statistics, help with homework—and much more." Check out their examples page: http://www.wolframalpha.com/examples/ -- it's prettymuch exclusively academic, as well as useful and interesting.

It's not just a search engine like Google. Instead, it helps you do concrete things. It's pretty cool, in terms of being a new form of information media. Give it a try, enter in anything like your hometown, a math problem, a scientific equation, a rare animal, etc.

For instance, I typed in "flying spaghetti monster", and here's what it looks like:



Awesome! 

[Tank]

I'd heard of this but not used it until now. Just had a ten minit play and I'll be using it in future. Good link  

You can add Wolfram Alpha as a search engine on Fire Fox.

[Asmodean]

I use Wolfram Mathematica for maths-related stuff.