Tim Converse has written software to recommend neckties, answer questions about space stations, pick value stocks, and make simulated breakfast. He has an M.S. in Computer Science from the University of Chicago, where he taught several programming classes. He is now an engineering manager in the Web search group at Yahoo!.

Joyce Park has an M.A. in history from the University of Chicago, and has worked for several Silicon Valley startups including Epinions, KnowNow, and Friendster. She is a co-lead of the Mod-pubsub Open Source project.

Clark Morgan is a Web application and educational software developer with more than five years’ experience writing PHP. He works primarily with medical clients and related businesses. Originally from Boston, he now lives and works in Jacksonville, Florida, with his wife and two children. Clark spends entirely too much of his free time reading other people’s computer books.