About the technology author(s): Mathew Nelson joined IBM in 1991 and has been programming since the dawn of time. His previous projects include Robocode, an educational programming game for Java. A few years later, he decided to try a new game: The battle against spam. With FairUCE, he's winning. Mr. Nelson is currently an advisory software engineer in IBM's Internet Group. He is based in Cambridge, Ma., and Concord, N.H.
