Thanks for all the input, keep the ideas coming.
The individual overall rankings is certainly a popular choice, I've been speaking to people all up the WA coast and lots of people want to see how they compare overall with their mates.
Technically there's no problem with having a 500 metre division, and if it's relevant to the world record then that's a pretty good reason to me. The problem I have with adding another division is purely from a layout point of view: 6 tables wrap nicely across a page, whereas 7 is a pain in the proverbial. I also want to keep the task of putting in data as simple as possible -- the last thing a computer numpty needs is to be confronted by masses of boxes to fill in. Maybe we could replace the nautical mile with a 500 metre division? As always, I'm open to ideas on this, the more that people tell me what you want, the better the competition becomes

A "Movers and Shakers" page is a great idea, or maybe a box on the front page that puts a person's name up in lights if they hit a PB.
Another idea I've been toying with is with regard to verifying speeds. If someone hits a PB, the site might request the person to upload their track, and it would then be available for a week for anyone to download and check. Then anyone can call "Cheat" on that track if they think the numbers are out, and an official timekeeper can have a look at it. What do you think?
I'm amazed at the level of participation in the challenge, I didn't realise just how big it would get when I banged out the first set of pages earlier this year. Now that it's taken on some momentum, expect some changes for next year