Ok, I've been on the Internet since 95 or so and I've run through my fair share of screen names.
Mr. Whitefolks was my ICQ name for a long, long time. Note that this has no racial component, he was the white pimp on Pimps Up, Hos Down. Incidentally I still remember my icq number 5521315.
o0ignite0o is my original name on AIM. This orginates from the 'ignite, ignite, ignite...' chorus of the RATM song Calm Like a Bomb. The o's were my silly way of representing against all the silly straight edge X people.
iburn850 came along at some point but was short lived as an AIM name. 850 is a short lived St. Louis band that takes its name from looking like BSO or bud smokers only.
Currently I am tellkyle on yahoo. I came up with this for the obvious reason that it is my first name, but also so that anyone can remember it and not write it down. Its a sequence of questions that always leads to my email. "Whats kyle's email address again?" "What do I want to do ?" "Oh yeah, tell him, tell Kyle" "But what was the last part?" "Duh, the most popular internet site ever, yahoo". Problem solved, everyone can commit my address to memory

Thanks again for all the kind posts on the Intro board!