I think you're trying to look for "Wanted pages". Broken internal links are to some extent desired as it is marker to show possible, relevant additions to your wiki.

On 1/9/07, mediawiki-l-request@lists.wikimedia.org < mediawiki-l-request@lists.wikimedia.org> wrote:

Date: Mon, 08 Jan 2007 06:16:08 -0600 From: Air Force CGOC Webmaster webmaster@afcgoc.org Subject: [Mediawiki-l] Broken Links Report To: mediawiki-l@Wikimedia.org

Is there a way to get a quick list of broken internal links in MediaWiki? I found weblinkchecker.py, but it seems to be geared only to external links. How can I get a list of internal links that point nowhere?