Website for apartment search?

Your best bet is to hook up with a Korean friend, or a Korean you work with and go to something called a "bu dong san." It's a rental office thats seen on almost any corner of any street. Never use the internet to get a place, the pictures they put on there never match what you see when they give you a tour. The rental offices have plenty of one room studios or villas that us foreign people can afford. They will not screw you either. Just always make you get a tour of the place before you put down the deposit. If you are looking for a small place you will most likely put down no less than 1 million won. If you are looking for an officetel, or a two bedroom place expect to put down no less than 3 to 10 million won.

You can use:

www.pusanweb.com

Most of the listings will be for Busan, but you can post your own ad for free in the Classifieds - Housing wanted section.

The site is in English.

Craigslist.org