HTML Symbols, Entities, Characters and Codes
For all your copying and pasting needs:
A delightful reference for HTML Symbols, Entities and ASCII Character Codes
Clichés are hard
An offhand remark I made on Twitter spurs Dom on to do a whole lotta research on character encoding in class names.
Related links
Entity Code - A Clear and Quick Reference to HTML Entities Codes
A handy page for looking up HTML entities.