Nail Those Acronyms

I'm sure you've got them all figured out. But just in case. Another list:

AFK Away From Keyboard
ASL? Age? Sex? Location?
B4 Before
BAK Back At Keyboard
BBL Be Back Later
BCNU Be seeing you
BRB Be Right Back
BTW By The Way
FAQs Frequently Asked Questions
IMHO In My Humble Opinion
L8R Later
LOL Laughs Out Loud
MOF? Male Or Female?
NM or N/M Never Mind (or Not Much)
NP or N/P No Problem
OMG Oh My God
ROFL or ROTFL Rolling On (The) Floor, Laughing
TTFN Ta Ta For Now
UR Your / You're
W/ With

And if that's not enough:

AFAICT As Far As I Can Tell
AFAIK As Far As I Know
AIUI As I Understand It
BST But Seriously Though
BTDT Been There, Done That
CUL See you Later
DWISNWID Do What I Say, Not What I Do
DYJHIW Don't You Just Hate It When
ETLA Extended Three Letter Acronym
F2F Face to Face
FOAF Friend Of A Friend
FWIW For What It's Worth
FYI For Your Information
GA Go Ahead
GAL Get A Life
GIGO Garbage In, Garbage Out
IANAL I Am Not A Lawyer
IIRC If I Recall Correctly
IME In My Experience
IMNSHO In My Not-So-Humble Opinion
IMO In My Opinion
IOW In Other Words
IRL In Real Life
ISTM It Seems To Me
ITRO In The Region Of
IWBNI It Would Be Nice If
IYSWIM If You See What I Mean
JAM Just A Minute
KISS Keep It Simple, Stupid
MOTOS Member Of The Opposite Sex
NALOPKT Not A Lot Of People Know That
OIC Oh, I See
OTOH On The Other Hand
OTT Over The Top
RTFM Read The F****** Manual
RUOK Are you OK?
SITD Still In The Dark
TANSTAAFL There Ain't No Such Thing As A Free Lunch
TIA Thanks In Advance
TIC Tongue In Cheek
TLA Three Letter Acronym
TNX Thanks
TPTB The Powers That Be
TTYL Talk To You Later
TVM Thanks Very Much
WIBNI Wouldn't It Be Nice If
WRT With Regard To
WTH What The Hell (similarly: WTF)
WYSIWYG What You See Is What You Get
YABA Yet Another Bloody Acronym
YHM You Have Mail