Would it be possible to integrate chapter wikis into the national wiki?

By using a namespace extension to assign a namespace to each chapter,
and some subdomain rewrite rules, it may be possible to merge all
chapter wikis into the national wiki.

[school].freeculture.org/wiki could be configured with rewrite rules
to point to a portal for that school, and it should be possible to
vary the theme of each namespace such that chapter wikis appear as
sub-wikis.

I believe there would be several social as well as technical
advantages to this shift:

* True unified log-in/userpage

* Easy collaboration between national campaigns and chapter actions;
  may encourage more interaction between members at different schools

* Single database

* The national wiki is prettier than most chapter wikis, and has
  cooler extensions

* Easy to set up new chapter on the wiki

However, this is not a typical mediawiki usage, so there are several
perils to consider:

* We would need an extension in order to have sufficient freedom to
  play with namespaces; this seems the most thorough effort thus far:
    http://www.mediawiki.org/wiki/Extension:Namespace_manager

* While some centralization has some advantages, chapters may be
  uneasy editing even their namespace if it's in the high-visibility
  national wiki

* It's unclear how difficult importing the existing wikis into this
  system would be

* It may be clunky and/or error-prone linking to everything as
  [[School:New Page]] instead of [[New Page]]