George Washington's Rules of Civility and Decent Behavior @ Foundations Magazine
http://www.foundationsmag.com/civility.html

Presented entirely unironically, but these are hilarious (random caps make everything funnier, obviously). I especially like #2: When in Company, put not your Hands to any Part of the Body, not usually Discovered.

on e-mail netiquette and much more

From email to social networking to classroom blogs, today's students are online, both in and out of school -- a lot. Edutopia