So it seems we finally have one server for everybody. Check out freecivweb.org.
This was born as just a throwaway server to play non-longturn games until the community server included them. Now that it seems we have one, this server demise is near.
Freeciv is a Free and Open Source empire-building strategy game inspired by the history of human civilization. The game commences in prehistory and your mission is to lead your tribe from the Stone Age to the Space Age. Freeciv can be played online in your web-browser for free.