More and more people are choosing to live some kind of second life online. The role-playing game World of Warcraft, in which players work together to accomplish missions, defeat enemies, and become ever more powerful, boasts millions of players worldwide.
But SL represents something different. Rather than a game with set goals, it is a "life" that its residents decide to live, a virtual world some see as an early version of The Matrix, depicted in a popular Hollywood movie series.