Gojax is a Web-based GO board using PHP,
Javascript, and ajax techniques to produces a
nice-looking interface, and a C++ go server
capable of handling an unlimited number of GO
boards (game number limited only by memory).
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
The server is more stable(thread pooling and interlocking have been implemented). There are many bugfixes. Refreshing during the end-of-game phase works properly. The board and the history can be downloaded at any time in SGF format. Small documentation has been written.