Brett D. McLaughlin has worked in computers since the Logo days. (Remember the little triangle?) In recent years, he's become one of the most well-known authors and programmers in the Java and XML communities. He's worked for Nextel Communications, implementing complex enterprise systems; at Lutris Technologies, actually writing app servers; and most recently at Oracle, where he continues to write and edit tutorials that matter. His list to date includes Head Rush Ajax, and Java 5.0 Tiger: A Developer's Notebook. Justin Edelson has been a software developer for more than 10 years, specializing in web development for media and entertainment companies. He has contributed extensively to high-profile web sites and apps for brands such as MTV, VH1, Comedy Central, Showtime, The Movie Channel, Spike TV, Nickelodeon, and MSN. Recently, he was instrumental to MTV Networks' wide-ranging suite of mobile products, which includes messaging, ringtones, wallpapers, games, and mobile video channels, in partnership with all major U.S. carriers.