The Internet opens a communication channel to bring any people of similar interests together. The network of contributors for planetaria does not make an exeption. Most prominent internet groups can be found below.

 
Dome-L: http://www.planetarium.net/
Virtual network of planetarium contributors. It contains a simple discussion thread, an event calendar and opportunities for an individual presentation. The origins go back to a mailing list, Dome-L, that is active still but slowly being substituted by this network.
Starting date: 1993 / 2008
Subscription: free but essential.
Moderation: Rovy Branon

Fulldome Video Group: http://groups.yahoo.com/group/fulldome/
Community of planetarians and fulldome users. A contribution is sent via e-mail for instant publication. A topic can easily be traced by its title.
Starting date: September 2000
Participation: free but needs approvement.
Moderation: Ryan Wyatt

Small Planetarium Group: http://groups.yahoo.com/group/small_planetarium/
Another discussion group via e-mail. Focus lies on the needs of smaller facilities and portables. Contributions also span self-made devices. Open to any interested people.
Starting date: March 2006
Participation: free but needs approvement.
Moderation: Barry Gerdes

Observatory Central: http://www.observatorycentral.com/index.php?showforum=6
Forum board for topics related to technics, facilities and history of planetaria. Experts on engineering prevail, but beginners are welcome.
Starting date: June 2006
Participation: free but needs a registration.
Moderation: Ron Walker

Immersive Forum: http://extranet.spitzinc.com/discussion/
Forum on video production and software provided by Spitz Inc. Low participation.
Starting date: July 2003
Participation: needs a registration.
Moderation: Brad Thompson