I'm in the same boat as Beth. I've got my installation up and running but I can't seem to find any kind of technical documentation. At all. I've found the 2 admin manuals, but those are only good for administration tasks, not development (skins, modules etc). And the .chm isn't much use to me at this point in time.

I've been going through some of the videos, but obviously those are a bit slower than reading docs. I'm currently watching the "DotNetNuke Explained - Basic Skinning" video on the official YouTube channel and at 1:41:54 it makes reference to the "Project and Technical Documentation" section of the DotNetNuke website (this was the old DotNetNuke website, before DNN I think, around 2012). Looking at the screen shot in the video there seems to be a long list of technical docs e.g. "ClientAPI, Data Access Guidelines, Friendly URLs, Host Template" etc etc.

What happened to all of that documentation? I'm convinced I must have missed something, somewhere because I can't find any kind of docs at all on the current site?

Awesome, thanks! Having looked at the "All Pages" section in the wiki I see there are a lot more pages than I initially thought there were when I first saw the wiki landing page. I'll stick with the index and search for the mean time.