Introduce the topic of interactive 3D virtual worlds. This module provides an overview of what virtual worlds be used for, how they are they built, and what technologies are available for implementing them.

3D applications
Building worlds
Software technologies
Hardware technologies

Below are some Web sites to explore to find and view interesting Web3D applications. Visit ParallelGraphics first, and install Cortona, their free VRML viewer.

http://www.parallelgraphics.com/

http://web3d.about.com/

http://www.shout3d.com/