For us web-dev’ers, there’s usually a set of sites that we always come back around to, mostly because our brains are.. (crazy idea) finite. While I’ve successfully memorized “mdash” to be different than a hyphen, there’s all sorts of bulleting options that silly designers like to make me implement. For such occasions, I just found this list:

http://danshort.com/HTMLentities/

♕ takes ♜ !

UPDATE: IE7 in WinXP doesn’t support many of these entities, so using IE’s conditional comments saves the day: http://www.quirksmode.org/css/condcom.html