I use special characters in HTML all the time. Cutting and pasting from MS Word is especially problematic because many systems choke on their characters. I usually use the html special characters and just look it up on sites like this. However, I recently saw this site called HTML Entity Character Lookup.
This site is really neat and I think I will start using it. Try entering in a character which is close to the one youa re trying to insert. Like c will give the copyright symbol. I also like the big text. Great work.