Second Life provides infinite possibilities for the users to create objects. The current members have collaborated to create a universe that consists of 100 terabytes of user created data. The members are able to transfer and manipulate data. Second Life is a social network that meets basic human needs. The members have control. They can buy, sell and trade property they create. Each of the 100 million avatars play an important role in the creation, maintenance and improvement of the society.
Quote from http://www.secondlife.com:
"From the moment you enter the World you'll discover a vast digital continent, teeming with people, entertainment, experiences and opportunity. Once you've explored a bit, perhaps you'll find a perfect parcel of land to build your house or business."
To check out the lecture "Philip Rosedale: Second Life, where anything is possible" click here