didn't want to post this in the language resources thread since it's not just language stuff, it's got everthing.
has lots of resources. job ads, classifieds, apartment listings, etc, plus also has links for other stuff to help a gaijin get used to life in Japan. also lists entertainment, touristy stuff etc. tons of goodies! i haven't had a chance to snoop too much yet but should be helpful for anyone planning a trip there or staying longterm
http://www.gaijinpot.com/