Last Update: 05 Jan 2013.
The Fourth Pyramid site is closed.
There is a Gamma World group/e-mail list at http://groups.yahoo.com/group/gammaworld/.
It has been up and running since 1998!
As of 17 Sept 2007, there are over 600 members.
All editions/mutations of GW are welcome.
If you just want to join the e-mail list, send an e-mail to gammaworld-subscribe@yahoogroups.com