In fact, why does the portal not link to the current list?
though I doubt I'll have time to do much about actual content until my vacation so I won't link to them from any other page yet, just get the layout sorted
I won't put any content on it at all, links included, until I've worked out how to categorize and display it. In fact, I don't even think it's up to WIP yet, unless that's work in planning rather than work in progress. Once the portal is done, I actually expect the current list to be obsolete as everything on it will be accessible from the portal in at most two clicks - After that I'll see if I can get it renamed to 'master campaign list' or something like that and just keep one link to it somewhere on the page where it doesn't get in the way.
What's there now is really there just as a testbed for showing you all (and myself) how different layouts and ways of sorting the campaigns might work, and to bring out ideas for how to do it better. Like yours about categorizing after era instead of length - Which I agree with, that would be a far better way of doing it, so I'll change it to that next time I work on it

How about my splitting it up into TCs, campaigns that are also major mods that other campaigns rely on, and campaigns with few-to-no mods though? Good or bad? Reason for doing it is that the heavy mods and TCs essentially have a continuity of their own, with entire new fleets of ships and complex backstories or for that matter a different universe which their child campaigns adhere to, and so keeping the campaigns that require those mods/TCs together instead of intermixed with the rest makes sense to me.
Finally, I'd like to keep the seperation of campaigns into which engine they run on, simply for user friendlyness - Someone who runs Retail can quickly find compatible campaigns that way without having to click on each one and see if it is for FS1, FS2 or FSO. Can still apply the categorization by era to them though, that makes good sense regardless.
[Edit] PS. Thanks to whoever fixed it so I can edit the main page, just noticed I have an edit link now instead of view source

It's nice to not have to pester other people to add the links it once these pages are ready.
[Edit 2] Updated with Goober's suggestions, left out FS2 Era and post-capella categories for FS1 campaigns though, on the assumption that none exist since the story didn't exist at the time. Also made a (so far empty) Featured Campaign template and added that, which we can use similar to the featured article on the main page to in turn give notable campaigns a time in the spotlight.