I just wanted to ping the list about this page;
http://www.mediawiki.org/wiki/Interwiki_map
I don't know if it will be useful, but we could potentially use this as a source for the interwiki links that come packaged by default with MediaWiki. Also its a good place for community feedback - especially about dead / altered links.
I also took the liberty of adding a 'description' field into the table, as per this wish-list item;
http://bugzilla.wikimedia.org/show_bug.cgi?id=10812
Cheers, Dan.