I've Always wondered when people decided it was no longer important to remember there roots in the slang terms on the internet. Due to the amazing lack of knowledge even by self - professed "web nuts" i've put this small list together. It's in no way comprehensive - but it ought to give you a SMALL idea of what older webheads mean.

AFAIK - As Far As I Know
AFK - Away From Keyboard
BBIAB - Be Back In A Bit
BBIAF - Be Back in A few
BRB - Be Right Back
GTG or G2G - Got to Go
IAW - In Another Window
IIRC - If I Remember Correctly
IMHO - In My Humble Opinion
IMNSHO - In My NOT so Humble Opinion
IRL - In Real Life
LMAO - Laughing My Ass Off
LOL - Lauging out loud
ROFL - Rolling On the Floor Laughing
TTFN - Ta Ta For Now
TTYL - Talk To You Later

Now, when i say i'm IAW, but when I come back I have some stuff to di IRL and i've g2g, but i'll bbiab because IMHO this was a good conversation... you can have an idea what i mean! Enjoy!