Wolfram Alphra

Here is an awesome research tool I found called Wolfram Alpha.  http://www.wolframalpha.com/   It is a search engine, but not quite.  They call it a computational knowledge engine.  You can ask  a question and the info that comes up is pretty amazing.   It will give you the answer to your questions, plus other pertainent info.  The site does give you a few links to other sites, but not like google.  For math, it's pretty cool.  You can type in an equation, and it graphs it for you and shows the steps to solve.  (alternative to the graphing calculator)  They have an educators site which is worth looking at too.  http://www.wolframalpha.com/educators/  The educator's site has lesson plans, a video gallery with ideas on how to use it in the classroom, as well as other resources.  Watch the video from Stephen Wolfram on the homepage.  It's pretty amazing.  It's a very "smart" interface.  Check it out.