I'll back previous suggestions to provide links to GPS tracks and waypoints for the passes themselves, perhaps the start and finish points, as well as known biker-friendly hotels. Then Google Earth and Google Maps bookmarks. It would be really sweet to see a height profile of the pass like you see on cycling websites, it gives a really good impression of how steep the ramps are.
I also think that latest info pass status should be confined to the forums, but there should be links directly to those discussions from both the pass description pages and the pass condition / weather links page. Some weather magnets for each pass might be a nice touch if there is room on the page.
Links to databases of speed traps.
Maybe a little more info on scenic spots or eateries would be nice. I hate it when I stop for a break in a fairly bland place, only find a terrific one just around the next corner. Which passes have good restaurants on top, and which are pretty much barren. Sure, some of this in on the maps, but not always, and it's not always up to date.
Although your own photos are good, they are somewhat limited in quantity for certain passes. I'm sure you guys were much more focussed on running the passes than photographing them. Or, the photos are all from one day, and sometimes that is a rainy horrible day, which doesn't really inspire others to go ride it. Maybe if you took a montage of photos from other forum users it would give more of a rounded impression of what to expect up there?
Pingvin's idea for naming the better direction for running the pass is great. It helps a lot with route planning if the pros and cons of running the pass in either direction are there.
I think you could look at most of the questions asked here in the forums by new riders for some ideas for additions. Suggested routes from the channel ports, where to base yourself for a few days, questions that come up all the time.
Maybe a section on the Croatian passes as those seem to getting more popular. Karza can help with this I'm sure.
How about links to forum member sites? Some users (like ChrisN) have great sites focussed on their own travels, often in other areas AR.com doesn't cover.
Links to mapping software, GPS hardware etc. that people seem to make heavy use of these days.
Is that enough to keep you busy Tim?