Thanks to Frank, K0BRA, for pointing this out via the AMRAD mailing list. He writes:
Now there is a Wiki on connector pinouts [and cable wiring]. If you are into making cables to hook this to that and need pin numbers you may find this makes it quick and easy. There is a lot of obscure stuff out there and this is the place to find it. If you don’t, then add it.
Looks like a good resource, and because it’s a wiki, you can add connector pinouts and cable wiring lists that aren’t there. Shall we start a ham radio cable category?