I made some simple templates for labelling pages. You can use these templates on a page by inserting {{TemplateName}} at the top.
Prints a message that the page is obsolete at the top of the page, and adds it to Category:Obsolete
Prints a message that the page info needs to be revised and adds it to Category:RevisionNeeded
Some of the older pages have good stuff on them that isn't really accurate anymore, so I've been labeling those {{RevisionNeeded}}. Other pages are pretty much all wrong and I've been labelling them {{Obsolete}}.
I've also started mucking around with the Category: assignments to build up the outline. I'm leaving the existing Category: tags alone except when they are wrong for the current outline or would be confusing. I'm also removing some of the MIBS-era categories to simplify things and isolate the Obsolete pages a bit more.
--Tim