More speakers have signed up to take part in the Worlds in Motion Summit, part of February 2008's Game Developer Conference.
Taking place on Monday February 18th and and Tuesday February 19th, the event will examine the use of virutal worlds and online community spaces for entertainment and commercial purpose.
It's one of the handful of summits that take place during GDC - others focus on casual games and outsourcing.
For the inaugral Worlds in Motion summit, the latest speakers include Nexon's Min Kim, Millions of Us' Reuben Steiger, Rmbr's Gabe Zichermann and GoPets' Erik Bethke. Previously confirmed speakers include Areae's Raph Koster.
For more information head to the official GDC site.