Forum Moderators: open
This is what I use:
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
and this is one I found "suggested" in these forums:
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
Shadows Papa
UTF-8 should always work, especially if you have multilingual pages (such as a chat room, in lack of a better example).
But, when you know exactly which charset you're using (meaning, if it's an English only page where you are in control of the content) I'd recommend using iso-8859-1, since it's more specific.