There are several articles on the website which should be converted to wiki articles like here: http://netbsd.org/docs/misc/index.html
On the way, you could separate obsolete articles from newer ones.
Though this work could also partially be done by a tool like pandoc, the articles on the website have different format: Sometimes docbook, sometimes html, sometimes a mix of them. And pandoc doesn't result in such good results as hand-conversion might do.