4 links
Bitmanagement Software GmbH
bitmanagement.de
Develops BS Contact VRML (plugin), BS Contact MPEG-4 (plugin), BS Contact J (applet).
Parallelgraphics
parallelgraphics.com
One of the leaders of the VRML industry: develops viewers for a wide number of platforms including several mobile devices, and applications for the creation of content.
The VRML Resources Site
ktb.net
Source for novice and intermediate authors includes tips, authorware tools, models, and textures.
The Web3D Consortium
eb3d.org
Creators of the VRML (VRML1, VRML97 and now X3D, previously called VRML200x) open standards.