The Wayback Machine - https://web.archive.org/web/20090109164637/http://www.webreference.com/html/tutorial17/
Tutorial 17: Shady Characters
So far in the HTML with Style tutorials, I have let you type away
at your text editors without worrying too much about which characters
you use and why. HTML, however, is quite picky about what kinds of
characters are allowed to inhabit its documents, and requires you to
let it be known in advance which characters will be allowed in and how
they'll be dressed up in bits and bytes. In this tutorial, we will
take a look at the concepts of character sets, character encodings,
and character references.
