Wolfram Alpha

Have you heard of Wolfram Alpha yet? It's not a search engine per se. According to the website...

It's a computational knowledge engine: it generates output by doing computations from its own internal knowledge base, instead of searching the web and returning links.

In other words, you can do some cool things with it, as long as it knows something about what you are asking. Since it doesn't really search the internet, it wont give you any results if the internal database doesn't contain at least some facts about the subject of your query. This is an important fact to consider before passing judgment on Wolfram Alpha. I wasn't really all that impressed with it until I understood that.

It's useful for determining how many trees are used when you print a document with 5000 words (.0012), or how much Vitamin C is in 4 apples (31.3 mg)...stuff like that.

Ohh, and just in case you were wondering what the GDP of the United States, times the distance to the moon, divided by the population of Tulsa was...The answer is $ 8.944 trillion mi/(person yr)

What the heck is a Mile US dollar per person year? That's a freaky unit of measurement!

So try it out...just remember that it is not a search engine in the classical sense.