Short glossary of common internet shorthands.

• IRL - In Real Life

• BRB - Be Right Back

• IMHO - In My Humble Opinion

• IMNSHO - In My Not So Humble Opinion

• LOL - Laughs Out Loud

• LMK - Let Me Know

• AFAIK - As Far As I Know

• FWIW - For What Its Worth

• ASL - Age/Sex/Location

And tons more HERE