London Wiki Wednesday on Thursday 27th November 2008.
Yes, a Thursday. Looks like an interesting event in the series.
"The plan is to meet regularly, building up to a major conference
sometime in 2009. For the first meeting we have a great sponsor NESTA
(the National Endowment for Science, Technology and the Arts), at
their offices (details below). It will be on Thursday 27 November. As
well as being on a non-Wednesday, we will be starting a little
earlier at 16:00 until 20:00. This meeting is going to be something
special. Please sign up on the wiki as usual, and look out for full
details and the agenda."