3.D.H.T.M.L manipulates web pages online and generates interactive, three-dimensional relationships among them using Dynamic Hypertext Modeling Language. By allowing the user to manipulate characteristics, behaviors and attributes to discover and express ideas of meaning, structure and aesthetics, it enables data representation to become an individualized design tool.

http://caad.arch.ethz.ch/~moere/projects/3dhtml/
World-Up VR Development Toolkit, http://www.sense8.com
Document Object Model, http://www.w3.org/dom
Microsoft Technologies Reference, http://msdn.microsoft.com/workshop