USB type-B connectors are the big ugly square ones. Easy to find cables for, but they sure ain't very pretty. So they still have value. Get them here at Solarbotics!
Begone, hard-to-program USB devices! At the hands of my FT232RL chip, you will behave like a serial comm port!
The Parallax USB to RS-232 is a great little adapter that takes your mini-USB connector and converts it to a RS-232 interface!