Well, the Universalism.info and UUA.info domains are being squatted on, but Unitarian.info (gladly) is held and used by the London District and South Eastern Provincial Assembly of Unitarian and Free Christian Churches. The site isn't fashionable, but it is useful. Well, perhaps "useful" is a bit of a stretch, but it is there and a squat isn't. Perhaps it would be helpful if planning a trip to London that falls over a Sunday and you're looking for a church to attend. (Then you could rule out the ones that are closed any given week.)
There is a nice page of links, one of which is for the new page of Unitarian College Manchester (unitarian-college.org.uk), a ministerial training college.
Unitarians in London (Unitarian.info)
[2009. Sill owned by the London Unitarians but currently unused.]