two things!

[highways]

First, I can't believe I've been studying Mandarin for a year and a half and in all this time, until now nobody ever pointed me to this site. It's basically a dictionary but you can use your mouse to draw characters (or a vague approximation of them) and it'll look them up for you. Very useful for finding the meanings of characters you can't pronounce.

Secondly, has anyone had any luck learning bopomofo? I'm learning now because they use it so often here in Taiwan, but I'm not having much luck finding any resources on it except the Wikipedia entry.