Having trouble figuring out what the kids mean when they write that somebody is a "k3wl d00d?" Well, cool dude, Bill Gates (III), has come to the rescue with Leetspeak: A parent's primer to computer slang.
In this fascinating primer, we learn how to replace letters with numbers, use phonetic replacements, and such troubling information as the "rules of standard English style are rarely obeyed" and "mistakes are often left uncorrected"... sometimes deliberately! I'm quite certain that spelling words wrong leads directly to heroin use.
Reading through this, I'm reminded of Barbara Billingsley in Airplane!: "I speak jive." Only the MS Leet page isn't as funny.