Secondlife

Secondlife is an immersive virtual three dimensional world that is accessible with installed software and internet access.
SecondLife which is a registered trademark of Linden Labs, allows people to take on a personal representation known as an avatar, to represent themselves with in the virtual 3D world. The Software used to access Secondlife is known as a Secondlife Viewer. Viewers are made available by Linden labs and through their open source initiative, also from third party Viewer programmers and programming teams.