Netiquette

E-mail Etiquette (Netiquette) by Chris Pirillo
   Chris is a funny man and a long-time techie who does an awesome job here of giving the basics of online etiquette.

Netiquette
   A quick and precise guideline for e-mail, mailing lists, and chat clients.

E-mail Etiquette by Gene Wicker
   An incredibly thorough, long-but-good read on e-mailing, including stuff like the CC and BCC fields, signatures, attachments, quotes, and tons more.

And for the kids...

Netiquette for Kids from the Boston Public Library
   Some good advice and teaching not just on netiquette but online safety for kids.

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