I had never looked at Quick Links. I'll probably use it, now that I'm aware of it.
Still, the list at the bottom of the main page would be a little quicker to scan, as it's all on one page, as opposed to Who's Online. There is not much point in having it there if it's not easy to use.
The All About Circuits forum has the list alphabetized, and it's also powered by vBulletin, so it's possibly a simple option.