http://ckan.org/about/
I found this kind of interesting. CKAN is software for governments and
organizations to publish open data. CKAN intends to endorse Drupal as
a supported front end, a project driven in large part by
data.gov.uk
aimed at providing a deployable data hub server to anyone who wants
it. Provided you can host it.
I still like the infochimps model Dan M has championed for a lot of
reasons, but will be following this closely.