Extensible 3D (X3D) Graphics Working Group - The X3D Graphics Working Group is designing and implementing the next-generation Extensible 3D (X3D) Graphics specification. www.web3d.org/x3d.html
Introducing X3D Proposal (SIGGRAPH 2002) - Informations about the X3D proposal that will be presented at the SIGGRAPH 2002 event. realism.com/s2/IntroducingX3D.html
X3D Software Development Kit - Regulary updated, you can find there the lastest tools for editing and viewing X3D contents. sdk.web3d.org