It seems I missed that when .Mac shut down. I thought I had changed that years ago. Anyhow, it fell through the proverbial cracks.
I haven't been able to upload to the Yale servers for several months (I first discovered the problem in March, I think). I have to go into IT and pester them about it, but I haven't had time -- they didn't respond to my one email about it. I'm not sure if it's because the site was dormant for too long, or they no longer want to host it. If it's the latter, I will move the site to
chinesemac.org, which I just now claimed. [The above link works for me, but I claimed this domain only 5 minutes ago, so it may not propagate everywhere immediately. If it doesn't work, wait a while and try again.]