People can meet, interact with each other, build houses and whole worlds within a three-dimensional space.

A 3D virtual reality community. Visitors can chat, play games, hold community jobs, own homes, and buy objects.

3D virtual reality chat plugin software and servers. Design worlds, chat with friends, play games.

Active Worlds resource for visiting or creating your own virtual world: hosting, textures, 3D objects, avatars, skyboxes, tutorials.

Adobe Atmosphere resources: tutorials, tips, galleries of worlds, avatars, scripts, objects, and sounds. In German and English.

Jim Coe's training and resources for world builders. Tutorials with 3D demos and JavaScripts for Adobe Atmosphere Lighting, and audio.

Adobe Atmosphere tutorials, resources, directory, reviews, and news.

An official distributor of Activeworlds technology in Europe with 3D environments for both business and home use.

A "Top 100" list for Adobe Atmosphere virtual worlds and websites, based on click-through rates.

A hosting reseller for Activeworlds, Inc. since 1998.

A research and trade association for virtual worlds, avatars, virtual community. Organizer of yearly Avatars conference.

A popular and long-running web-based multiuser world, using VRML and Blaxxun browser software. Chat, and use objects.

Software and world development company. Also home to Traveler online community.

An Internet-based distributed multi-user VR system, developed by researchers at the Swedish Institute of Computer Science since 1991.

Explore, chat, and build a community using Active Worlds software.

A Blaxxun Contact-based 3D multi-user chat community. Users can create worlds or hold a community job.

Home of Meme: extensible networked virtual reality software.

A collection of multiuser VRML worlds (requires IE with Blaxxun Contact plugin) and forums.

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.

A site running several DigitalSpace Traveler worlds.

3D VR community with avatar based chat. Design and create your own home and surroundings.

An online society within a 3D world where you can explore, build, socialize, and participate in their own economy.

A collaborativly-built website about shared VR technology and software development (part of VRSource.org news site)

Travelers Network offers free voice chat in 3D virtual worlds.

An Active Worlds based system where you can build structures, play games, or chat with friends. Also offers world hosting for a fee.

A software infrastructure for distributed object-oriented programming. The primary application for VOS is a multiuser virtual environment run by many interconnected clients.

A guide to online virtual worlds with a focus on social interaction. Basic info, visitor ratings, reviews and helpful links for each program.

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.

An open source (gpl) virtual reality cross-platform 3D community software.

Resources for building and visiting online 3D communities.