Pearson plc invested $5.6 million for a minority stake in Worlds Inc.
, a San Francisco-based online interactive media company. Worlds Inc. operates Worlds Chat, a three-dimensional space on the World Wide Web, and plans to open the Internet Worlds Fair, an online entertainment destination, later this year. The company is also working with Steven Spielberg's Starbright Foundation to create a 3D online environment for children in pediatric hospitals. Worlds Inc. is a spinoff of software publisher Knowledge Adventure Worlds.