2009/6/24 Charles Matthews charles.r.matthews@ntlworld.com:
I was trying to follow the nofollow discussion (http://meta.wikimedia.org/wiki/Nofollow#Current_use_on_Wikimedia_projects). I see it hinges on "external links", and my question about it would be concerning when an interwiki link to a sister project is deemed "external". For context, I use many links to Wikisource pages I have created as references, and was wondering whether the [[:s: ***]] construction is read as an "external" link.
My understanding is that anything which goes to a URL - a "one-bracket link" - gets treated as an external link and is nofollowed, regardless of where it goes; anything created as a wikimarkup link, *including* interwiki links, is treated as internal and escapes.
(This has caused much elaborate conspiracy theory in the past revolving around nofollow and "favoured" Wikia links, etc)