...to help people decide where best to add content. Media wiki has a script for generating a sitemap, at http://www.mediawiki.org/wiki/Manual:GenerateSitemap.php, so we could perhaps leverage this.
We need to get a sitemap going. It will help get the topic hierarchy stuff in place and search engines find their way around as we move things around. There is an extension available  for generating dynamic sitemaps. So we wouldn't need a cronjob setup for the default script. So this is another possible solution.
Question as to whether a sitemap should be generated automatically. Sent out an email for discussion today.