I've created this to keep my fan fiction segregated from other life. On fanfiction.net, I'm known as 'Mr. Beeto'.
For those who are curious: 'Beeto' came from a high-school nickname from my cross country teammates based on my first initial, 'B'. (Think B-to, which was a spin on Alberto, as in Alberto Salazar, marathon runner extrodinaire). 'B' stands for 'Brian'. It kind of encourages prolific writing, too.