GerardM blogged about this the other day:
http://ultimategerardm.blogspot.com/2009/07/tropenmuseum-is-blocked.html
It was resolved quickly, fortunately. I would like to kindly request
some caution among the Wikimedia Commons admin community when dealing
with what appear to be institutional accounts. In the spirit of
building better working relationships with GLAM institutions
(galleries, libraries, archives, and museums), I think it's important
that our first contacts are friendly and professional. I don't think a
policy against institutional accounts is particularly helpful in that
regard.
--
Erik Möller
Deputy Director, Wikimedia Foundation
Support Free Knowledge:
http://wikimediafoundation.org/wiki/Donate