I'm always googling to try to find the code for ½ or » or ¿ and always seem to have trouble finding the right resource. I've finally come across a good webpage that seems to have everything I need.
If you're looking for the HTML for ASCII Characters or ASCII symbols, check out http://www.ascii.cl/htmlcodes.htm. Great resource!
Now I'll know exactly where to turn next time I have to go euro (€) on someone! Or even ¾ €!