Well I've been looking around and have come to the conclusion, among other things, that Planewalker needs to have a planar atlas. What it needs to do is give people an easy way to find just that right hellhole for the job. Now I know that other atlases have been made and put online but I am unaware of Planewalker itself having one. Then again there is always the possibility on this that I'm just being a berk and didn't notice the one we have. Anyhoo here is a quick list of things I think this planar atlas aught to have:
A. I think it should be written in an in-character style as if it were something a planewalker might actually pick up and use. Thus I'd like to keep most real darks to a minimum or at least inside sidebars or well defined and separated sections.
B. As an in-character work it also needs a publisher. A short forward on who wrote it and how much it costs, perhaps from the perspective of someone trying to sell it, should do this. Also sprinkling advertisements throughout the pages for kips, grub and bub, equipment and other things (Possibly putting much of the DM and dark stuff in these parts) would add to the feel of it.
C. Another item that would add to the feel is have different contributors for different parts and articles.
Are you talking about a website section (Check portals) or an actual book-esque product?