If you haven't checked this out go here and see the future of the web as a research tool. It went live just a few hours ago. Developed by Stephen Wolfram of Mathematica fame. Very cool. http://www.wolframalpha.com/index.html Give it a whirl or listen to this description here: http://www.wolframalpha.com/screencast/introducingwolframalpha.html
I've had a ton of fun trying out Wolfram Alpha over the past week. I haven't found a real need for it yet but I've enjoyed the explorations. and, I'm glad to find I'm not the only geek here on the Mansion that was looking forward to this new net app!