| 3D Chat Virtual Universe: People can meet, interact with each other, build houses and whole worlds within a three-dimensional space. |
| 3D Planets: A 3D virtual reality community. Visitors can chat, play games, hold community jobs, own homes, and buy objects. |
| 3D-4u2 multi-user VR solutions: 3D-4u2 offers multiuser 3D and virtual reality technology on the internet that seemlessly integrates most current technologies, ranging from live video to 3D animations and allows users to build themselves. |
| Activeworlds: 3D virtual reality chat plugin software and servers. Design worlds, chat with friends, play games. |
| Alterlinks: Active Worlds resource for visiting or creating your own virtual world: hosting, textures, 3D objects, avatars, skyboxes, tutorials. |
| Atmosphere Work: Jim Coe's training and resources for world builders. Tutorials with 3D demos and JavaScripts for Adobe Atmosphere Lighting, and audio. |
| AtmoWire: Adobe Atmosphere tutorials, resources, directory, reviews, and news. |
| AW Europe: An official distributor of Activeworlds technology in Europe with 3D environments for both business and home use. |
| Cage8: A "Top 100" list for Adobe Atmosphere virtual worlds and websites, based on click-through rates. |
| Chicago3D.Net: A hosting reseller for Activeworlds, Inc. since 1998. |
| Contact Consortium: A research and trade association for virtual worlds, avatars, virtual community. Organizer of yearly Avatars conference. |
| Cybertown: A popular and long-running web-based multiuser world, using VRML and Blaxxun browser software. Chat, and use objects. |
| DigitalSpace Corporation: Software and world development company. Also home to Traveler online community. |
| Dive: An Internet-based distributed multi-user VR system, developed by researchers at the Swedish Institute of Computer Science since 1991. |
| Dreamland Park: Explore, chat, and build a community using Active Worlds software. |
| Immersive Systems, Inc.: Home of Meme: extensible networked virtual reality software. |
| Moove: 3D chat world. Customizable avatars with facial expression. Users can chat, build and furnish a house, listen to music, share files. Can be integrated with external tools. |
| OzGate: A site running several DigitalSpace Traveler worlds. |
| Planet Virtuel: 3D VR community with avatar based chat. Design and create your own home and surroundings. |
| Second Life: An online society within a 3D world, where users can explore, build, socialize, and participate in their own economy. |
| The world of Ancient Mayas in virtual reality: 3D reconstruction of the Mayan Cities,using VRML or Adobe Atmosphere browser. |
| Travelers Network: Travelers Network offers free voice chat in 3D virtual worlds. |
| Unknown Galaxy: An Active Worlds based system where you can build structures, play games, or chat with friends. Also offers world hosting for a fee. |
| Virtual Object System / Internet Virtual Reality: A software infrastructure for distributed object-oriented programming. The primary application for VOS is a multiuser virtual environment run by many interconnected clients. |
| Virtual Worlds Review: A guide to online virtual worlds with a focus on social interaction. Basic info, visitor ratings, reviews and helpful links for each program. |
| VRMLWorld.net: A portal to various VRML worlds, with multiuser chatting via VNet+. Free to use and to add your own worlds. Works best with IE and Blaxxun Contact. |
| VRSpace: An open source (gpl) virtual reality cross-platform 3D community software. |
| Ziekerdanziek's 3D Help Guide: Resources for building and visiting online 3D communities. |
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