[koohead]

Here's a nice big list of commonly used acronyms

AKA
Also known as
AFK
Away from keyboard
BAK
Back at keyboard
BIF
Basis in fact
BRB
Be right back
BTW
By the way
CU
See you
CUL
See you later
EOM
End Of Message
FAQ
Frequently Asked Questions
FWIW
For what’s its worth
FYA
For your amusement
FYU
For your information
GMTA
Great minds think alike
GR&R
Grinning, running, and ducking
HHOK
Ha ha only kidding
HHOS
Ha ha only serious
IAC
In any case
IMO
In my opinion
IMHO
In my humble (or honest) opinion
IMNSHO
In my not-so-humble opinion
IMAO
In my arrogant opinion
IOW
In other words
LOL
Laughing out loud
MOTD
Message of the day
NBIF
No basis in fact
NRN
No response necessary
OTOH
On the other hand
PMJI
Pardon my jumping in
PC
Politically Correct (or Personal Computer)
PI/PIC/unPC
Politically Incorrect
POV
Point of view
RL
Real life
ROFL
Rolling on the floor laughing
RSN
Real soon now
TIA
Thanks in advance
TIC
Tongue in check
TTFN
Ta-ta for now
TYL
Talk to you later
WB
Welcome back
WTG
Way to go
YMMV
Your mileage may vary