Looking through the VDrift wiki lately, I've noticed that a lot of pages haven't been updated since 2007, others since 2009. Some contain outdated information.
I've gone through and added Category tags to nearly all the pages on the wiki. The Categories list is here:
http://wiki.vdrift.net/Special:Categories
I made a category for each of the headings on the Main Page, one for each operating system, and a special set that describe the state of a page. Those are:
[[Category:Review]] - need to check this page and see if it's up-to-date
[[Category:Update]] - this page is outdated, needs to be updated
[[Category:Expand]] - this page doesn't have enough information
[[Category:Reformat]] - this page needs to be reformatted
There are two other new categories which I set up to help categorize some pages not linked on the Main page:
[[Category:External Resources]]
[[Category:Historical]]
If you want to help maintain the documentation, please take a look at the pages marked for Review, Update, Expand, or Reformat. Once you have modified a page to fix a problem please remove that Category tag.