The original 2004 website graphical design was performed by Strapp Studio. I've modified it quite a bit since then, but the original still provides the design vocabulary for the current implementation.
I've used the following tools for various bits of the site and thank their authors for creating them and making them available:
While I'm handing out attaboys, let me mention the tools I use locally. I'm not claiming these are the best tools; once I'm familiar with a tool that does its job, I'll keep using it for a while (which is why I still use my HP-15C for everyday calculations). These are useful:
Additional thanks go to my fellow webteamers at OrigamiUSA, Anne LaVin, Trevor James, and Jim Weir, for numerous tips and tricks on website construction and hosting.