If you do one thing this week - take a look at Wolfram Alpha but before you do read this article Wolfram Alpha Computes Answers To Factual Questions. This Is Going To Be Big in TechCrunch.
Basically, Wolfram Alpha is a “computational knowledge engine” for the web - an online service for computing factual answers. You can ask it factual questions and it computes answers for you.
Have a play with it and see what you think - its a brilliant concept and like most great ideas - rather obvious in retrospect. I agree with TechCrunch - I think it will be BIG!