A virtual 3-D world for curious minds where you can own land, build your own house, play simulation games, win prizes, chat, and help the community grow. http://www.whyville.net/
Participate in discussions about relationships, hobbies, business, technology, health and other topics. Socialize with friends, or start your own chat group. http://www.talkcity.com/
Provides a forum for artwork, hobbies, and opinions. Has chat rooms, message boards, games, contests, an online drawing program, and image gallery. http://www.foundmyself.com
Microsoft's digital lifestyle club for students from around the world, with message boards, hubs, blogs and 10 MB of upload space for members. http://www.thespoke.net/
Nonprofit offering knowledge base and portal hosting for organizations and individuals. Includes information on services and access to public resources. Provides conference rooms, message boards, surveys, library, and voluntarium. http://www.stargazernet.net/