I used to be part of a message board call "Real Fans Stand" which is now basically non-existent which is why I have that name for the bracket. I had a really bad year a few years ago (tried to get too "scientific" in my projections that year) which brings my average way down, but overall I still rate as above average. My definition of "top" bracketologist is simply those who rate as above average in the bracketmatrix rankings (average score would be 0) and have been making projections for at least 3 years, and I only included those who have made recent updates.
http://rfsbracketscience.blogspot.com/