These are various WebGL samples.
Many of them use the tdl library which can be found at http://github.com/greggman/tdl.
One of them, the Aquarium (aquarium/aquarium.html) can be run synchronized across machines to form a multi-display simulation. You can see an example at http://www.youtube.com/watch?v=64TcBiqmVko
See aquarium/readme.html for more information.