Over the weekend I migrated to a new server, and in the process set the Athena Ruby development page in its own subdomain:
http://athenaruby.kalvesmaki.com. Please update your links accordingly.
And remember that this site is intended to be temporary. Once Dumbarton Oaks allocates development time for the Plone CMS we are using, those tools will migrate there.
Best wishes,
jk
Joel Kalvesmaki
Editor in Byzantine Studies
Dumbarton Oaks