Those are the basic ones...Here are a few somewhat less common ones:
Acronyms ....................................
Emphasis ...............................................
More stuff ................................................
A few words on Netiquette ............................
Netiquette refers to rules of good behavior in Internet communication. The
cardinal rule, of course, is to be considerate of other people--even though
you may never have to face them.
Typing completely in capital letters ("shouting") is another Internet taboo.
When responding to a message do *not* (please :-) ) repeat the entire
message to which you're responding. Erase all that is not necessary to
remind the originator to what it is you're answering or responding. Be sure
each line of the message you're responding to begins with the ">" symbol.
On most e-mail programs, lines beginning with the ">" symbol causes that
line to turn to a blue color. This symbol is universal, it and/or the blue
color means it's the original message to which you're responding. On a List
like SOLO-NET it's also customary to make it clear who wrote the original
message to which you're responding.
Flame: Flaming is (usually) inappropriate. A Flame is to criticize
negatively. To be rude or critical of something someone said. Usually not
acceptable behavior. Rebuttals to another person's opinions or beliefs
should always be made in a rational, logical and mature manner.
Foul Language: Subscribers should refrain from abusive or derogatory
language that might be considered questionable by even the most liberal and
open-minded of networkers.
Lurker: A lurker is someone who reads messages but never posts a
message of his/her own. Not necessarily a derogatory term - just someone
who for whatever reason does not join in.
Newbie: This refers to anyone who is new to the Internet or to whatever is
taking place. If you're a newbie, say so....! Everybody *loves* to help
a newbie....
Spamming: Spamming is a network term invented to describe the act of
cross-posting the same message to as many newsgroups and/or mailing lists as
possible, whether or not the message is germane to the stated topic of the
newsgroups or mailing lists that are being targeted.
The Unofficial Emoticon Dictionary (Smilies)
:-) Your basic smilie. This smilie is used to inflect a joking statement.
;-) Winky smilie. User just made a flirtatious and/or joking remark.
:-( Frowning smilie. User is upset or depressed about something.
:-I Indifferent smilie.
:-> User just made a mean or devilish remark.
|-) Hee hee
:'-( User is sad, crying
:'-) User is happy, s/he is crying
:-/ User is undecided or skeptical
:-0 Yelling!
[g] grin
[G] Bigger Grin
[VBG] Very Big Grin
Emphasize a word(s) by enclosing it in special characters like:
like *this*
like _this_
like *this*and*that*
AFAIK As Far As I Know
B4 Before
BCY Be Seeing You
BTDT Been There, Done That
BTW By The Way
F2F Face to Face
FAQ Frequently Asked Question
FOTCL Falling Off The Chair Laughing
FWIW For What Its Worth
FYI For Your Informatiom
GIGO Garbage In Garbage Out
GTG Get-To-Gether
IMO In My Opinion
IMHO In My Humble Opinion
IMNSHO In My Not So Humble Opinion
IRL In Real Life
LOL Laughing Out Loud
OIC Oh I See
OTOH On The Other Hand
PMFJI Pardon Me For Jumping In
PPL People
RTFAQ Read The FAQ (frequently asked questions file)
RTFM Read The Freakin' Manual
ROLF Rolling On Floor Laughing
SUDTR See U Down The Road
TIA Thanks In Advance
TTFN Ta-Ta For Now
TTYL Talk To You Later
WYSIWYG What You See Is What You Get
YMMV Your Mileage May Vary