Okay, so I am a tech geek (I claim other areas of geek as well) but I thought these things were really cool and I think everyone, or at least many people, would find these at least interesting.

The WolframAlpha seems like it is just another search engine like Google and they just name it a something-other-than-search-engine name, in this case they call it a computational knowledge engine (like Bing did, the new search engine by Microsoft, they use the stupid term "decision engine").
But it really
is different. It doesn't search for websites that have the term(s) you are searching for. It calculates things for you, it is a really big complex calculator. But this doesn't do just arithmetic and calculus or even physics and statistical. It can do all sorts of calculation and data finding. Like you can type in your name and it tells you the current popularity of the name, how many people are in the US that have the same name, most common age, etc. Put in your birthday and they tell you all sorts of things for the day. They have a whole host of questions that you can ask. I have used it as a financial calculator, but also to figure out what 90 days after a specific date. Jen's cousin, Wes, is in a chemistry class and when I showed it to him he got excited over the information that it gave him on different compound's data.
Just try it out real quick. It has an element of novelty that I saw in it at first as more of a toy. But I am starting to see a practical side that would make it very powerful and useful in the future. Keep in mind they opened this up just a few weeks ago and are growing and building new things in all the time.
Wolfram|AlphaUS Debt ClockThis one is not nearly as cool but it is neat to see the numbers. I have seen other ones but this one is pretty comprehensive on the debt of the US.
US Debt Clock