A guide to typing accented letters in Mac, Windows, and HTML. Olé.
Webmonkey's got a more extensive list of special characters...and there's always Popchar.
Evolt has a nice chart a well.
This one is very nice.
Very easy to identify the character your are after and then read the corresponding code.
In Windows, you can also use Ctrl+Alt+whatever for acute accents. I think. Certainly, Ctrl+Alt+E gives you .
I usually use this HTML4 reference.
What about em dashes and their friends the en dashes? I can never remember which is which: Option+- or Option+Shift+-?
bocigalingus must be something funny.