the apa's messaging forum..
tech questions:
http://finance.groups.yahoo.com/group/APAdigital/
general industry questions:
http://finance.groups.yahoo.com/group/APAnet/
email APAdigital-subscribe@yahoogroups.com to subscribe up.. a bunch of authors/working professionals troll this forum... it's a good resource
http://www.fredmiranda.com... these guys have a great board for used photo equipment.. everything goes pretty quickly