The Net: User Guidelines and Netiquette - by Arlene Rinaldi
ELECTRONIC COMMUNICATIONS
(Email, LISTSERV groups, Mailing lists, and Usenet)
-     Keep paragraphs and messages short and to the point.
-     Focus on one subject per message and always include a
     pertinent subject title for the message, that way the user
     can locate the message quickly.
-     Don't use the academic networks for commercial or
     proprietary work.
-     Include your signature at the bottom of Email messages.
     Your signature footer should include your name, position,
     affiliation and Internet and/or BITNET addresses and should
     not exceed more than 4 lines.  Optional information could
     include your address and phone number.
...skipping...
-     Acronyms can be used to abbreviate when possible, however 
     messages that are filled with acronyms can be confusing
     and annoying to the reader. 
 Examples: IMHO=  in my humble/honest opinion
 FYI =  for your information
 BTW =  by the way
 Flame  =  antagonistic criticism
 :-) =  happy face for humor