Raph Koster works at the Austin Office of Sony Online Entertainment, and is the creative Director for Star Wars Galaxies: An Empire Divided, the massively multiplayer game set in the Star Wars universe. Previously, he was the creative lead for Ultima Online and lead designer on Ultima Online: The Second Age. He writes and speaks frequently on issues of online world design, and maintains a webpage that includes the canonical history of online worlds and the well-known Laws of Online World Design at www.legendmud.org.
Koster contributed to the "Lessons of Going Online" panel.