Handy HTML Special Characters Resource

"HTML - Special Entity Codes"

This is a well-organized resource, showing HTML code for special characters, like letters with Accents - (e.g. ó, ò, ñ), other "foreign" (if you normally write English) characters, currency symbols, math symbols, other punctuation (like the ampersand and smart quotes), some discussion of how to use the codes, unicode codes (how many codes could a unicode code, if a unicode could code codes?), and links to more references.

Not bad at all.