Oops, I went to register at the JBF, but that page shows this message:
Byrne Robotics > Register New User
Sorry, new registrations are currently suspended, please check back again later.
It may be a quirk of my browser, but that message is in black text on a black background, so to actually see it, I had to highlight that portion of the screen with my mouse, or with CTRL-A.
Anyway, I expect this is temporary, so I will check again in a few days.