This is my favorite way of doing passwords now.
http://passphra.se/
It was inspired by an xckd comic (which was inspired by another article, I think). http://xkcd.com/936/
http://passphra.se/
It was inspired by an xckd comic (which was inspired by another article, I think). http://xkcd.com/936/
I would suggest using this website instead.
http://world.std.com/~reinhold/diceware.html
http://world.std.com/~reinhold/diceware.wordlist.asc
It does essentially the same thing, except that you do it yourself with a six-sided die.
That way your new password doesn't get sent over the internet in plaintext, and you don't have to trust the website that generated it.