All the category pages now sport pictures, which I hope makes them a little more user-friendly. Here's a few examples for your pleasure. The extra pages are also all now in line with the design principles of the main site, and they also have some pictures to ease things on the eye. On the other hand, I'll freely admit that some are far from optimal, so I'm happy to take any advice for improvement. A few other improvements are also finalized, including improvements to the navigation bar and the links in general, hopefully helping people move around the site more easily.
The biggest disappointment right now is the forum, which is still waiting to take off. For some reason people don't want to sign up, even for MyCalcTool, despite the advantages of a favorites list and fewer ads. I'll have to think about that one. We also seem to be leveling off at around 100 visitors per day which, although it makes the project worthwhile, is somewhat less that I think the site deserves. Another one for thought, although to be fair, it's not like I've done any active promotion.
So maybe it's time for the CALCTOOL OFFICIAL LAUNCH. I'm just about happy with the features, stability, and number of calcs (maybe a few more are needed...). It could be happening at an internet near you, very soon.