How does one join and what is implied by one's joining?
(I've missed the boat on this one a bit it seems...)
Ditto.
There are loads of threads on it, but it started with this jumbo one http://www.themodernantiquarian.com/forum/?thread=14248 It doesn't imply any commitment. If you'd like to send me you're email I can sign you up to the HA Smart Group.