Linden Lab, the creator of Second Life, doesn’t think that building a series of separate virtual worlds is a good strategy, director of marketing Catherine Smith says. Business Week
I’ll bet she doesn’t, it would completely destroy Linden Labs thats for sure. Its like having one server for webpages controlled by one company that makes a lot of money off it. The bigger the internet become the better it became. This furthers to strengthen the idea of a 3D web platfrom.