14. Sun Wonderland / MPK20 https://lg3d-wonderland.dev.java.net/ Project Wonderland: Toolkit for Building 3D Virtual Worlds Experimental Technology sponsored by this community and Sun Microsystems Laboratories          Project Wonderland is a toolkit for creating collaborative 3D virtual worlds. Within those worlds, users can communicate with high-fidelity, immersive audio, and can share live applications such as web browsers, OpenOffice documents, and games.