I mean that a link [[X]] leads to HaskellWiki if X exists in HaskellWiki and to Wikipedia otherwise. Interwiki links requires to change all occurrences of [[X]] when X is created.
[[wikipedia:{{PAGENAME}}]] may be handy on existing pages, it provides a link to additional material.

On 17.06.10 03:11, Jason Dagit wrote:

Both use the mediawiki engine. I know at one point mediawiki supported a notion of "interwiki" links. Perhaps this feature still exists and would give a way for us to more naturally link to wikipedia articles?

http://www.mediawiki.org/wiki/Help:Links#Interwiki_links

-- 
Best regards,
  Roman Beslik.