We had a malware attack a few weeks ago and it looks like our Google rank has fallen substantially.
I had not looked at the sitemap for quite some time so I used the link in AdminCP to edit the priorities of the existing content types and rebuilt the sitemap.
However, there is no entry for the encyclopedia and I am concerned that wiki articles are omitted from the sitemap. If searchbots follow the autolinks, it may not be all that important.