Do the math with Google
Today I was looking for a Learning-DVD. Since I just had the ISBN-Nr I thought that I give Google a try to do a search using this number. Of course Google gave me a the correct answer with a link to that DVD. But I was suprised to find out that it also gives me a mathematical result - you can use Google as a calculator. Just type in an equation and hit the Search-Button and there you go … together with a LaunchBar-Google-search-template pretty nice.
Check out the Google Web Search Features.