For the "Online World Go Club", please see EverBaduk.
OWGS is the Open Web Go Server, an open source web-based Go server. OWGS was located at http://owgs.org
OWGS is built using various open source technologies:
OWGS is "alpha" quality. Some features work, and some need work.
2012/09/03 - Login and registration fixes are up, as well as interface fixes and improvements. You should now be able to register, login and play.
2016/01/24: The domain is no longer hosting and appears to be for sale.