Still on the internet, mostly. It's better that way--you can actually get to them fairly easily!
Panlexicon
Did you ever have one of those times when you know there's a word, you know it's the right word, but you cannot for the life of you remember that word?
Wolfram Alpha
Wolfram Alpha is amazing. Want to know about oxygen levels during the Jurassic? Compare London, New York City, and Tokyo in population, area, and find out how far they are from each other?
