Bit of a hit and miss at the moment is Planet Emulation. Obviously having server problems or something.
Take a look at this
thread for more on Planet Emulation.
Anything in particular you're looking for on that site Sly294?
With BTTR, you can access their ftp by going to http://ftp.back2roots.org/aros/
which is back online.... how long for, I don't know