Second Life:
Second Life is a 3D online world with a rapidly growing population of over 3 million registered residents from 100 countries around the globe, in which the residents themselves create and build the world which includes homes, vehicles, nightclubs, stores, landscapes, clothing, and games.

Second Life is created by Linden Lab, a company founded in 1999 by Philip Rosedale, to create a revolutionary new form of shared 3D experience. The former CTO of RealNetworks, Rosedale pioneered the development of many of today's streaming media technologies, including RealVideo. In April 2003, noted software pioneer Mitch Kapor, founder of Lotus Development Corporation, was named Chairman. Based in San Francisco, Linden Lab employs a senior team bringing together deep expertise in physics, 3D graphics and networking.