I found a better one, check out http://www.edocr.com/doc/4/html-entity-cheat-sheet
Keyboard Hack: Cheat sheet for typing odd characters (®, µ, æ, £, ©, ñ, ±) ... More...
I found a better one, check out http://www.edocr.com/doc/4/html-entity-cheat-sheet