Two other things/threads I think would be very useful (as I got asked about this countless times here on the forum as well as by email)
- webhosting - list of providers, your experience with them etc. (I recently posted about this
http://www.wxforum.net/index.php?topic=31821.0)
- template comparison - I often see people asking me, or even here, what the differences are between the main available website templates (as far as I know there are four right now), something like a simple table with features of each, what they share, how they differ
And this is just a personal opinion, but I think rearranging the structure of the threads might be useful too. Some threads linked directly from the main wxforum website have not been active for literally years, while several very active threads are as a subthread of a subthread