Kathy is a technical writer who's worked on docs for Chrome and other developer APIs at Google since 2006. Before that, she worked at Sun, NeXT, and HP. Back when the web was young, she wrote the first doc to help developers write Java applets. She also co-created The Java Tutorial and maintained it for a very long time.
Seth is a Developer Advocate with the Chrome team. He is a conference organizer (Aloha on Rails, New Game), author (Expert Spring MVC), helped publish Angry Birds for the web, and is a big fan of HTML5 and the modern web.