I've moved the Oxford Guide off Compsoc, as the Compsoc machine is being retired next week. Handily, the new host, urchin.earth.li, has been upgraded to a dual 3GHz Xeon recently, so OpenGuides, despite its best efforts, shoudn't be *too* slow :)
The canonical URL for the Oxford Guide is http://oxford.openguides.org/
The static content is still being served by Compsoc but I expect to move that soon without trouble. This list will probably move soon too.
Let me know of any problems.
Cheers,