比如：
AFAIC
As far as I'm concerned
AFAIK
As far as I know
AFK
Away from keyboard
BRB
Be right back
BTDT
Been there, done that
BTW
By the way
BUAG
Butt-ugly ASCII graphic
C/C
Comments and criticism
EOM
End of message
FAQ
Frequently Asked Question(s).
FTFY
Fixed that for you
FTW
For the win
FWIW
For what it's worth
FYI
For your information
HTH
Hope this helps
IANAL
I am not a lawyer
IIRC
If I recall correctly
IMHO
In my humble opinion
IMNSHO
In my not so humble opinion
IMO
In my opinion
IOW
In other words
LFG
Looking for group
LMAO
Laughing my butt off
LMGTFY
Let me Google that for you
LOL
Laughing out loud
MMORPG
Massive multiplayer online role-playing game
MOTAS
Member of the appropriate sex
MOTOS
Member of the opposite sex
MOTSS
Member of the same sex
NG
Newsgroup
NT
No text
OMG
Oh my God
RL
Real life
ROFL
Rolling on the floor laughing
ROFLMAO
Rolling on the floor laughing my butt off
RTFM
Read the fine manual.
SO
Significant other
TBH
To be honest
TLA
Three letter acronym
TTFN
Ta ta for now
TTYL
Talk to you later
W/E
Whatever
WTF
What the fuck
YMMH
You might mean here
YMMV
Your mileage may vary