Welcome to the Forums. You've foiund the right place for Airstream information. As far as the clubs go, it sounds like you are already in them. The WBCCI is the official Airstream Club. These Forums are also sort of an Airstream club. The Forums people also put together Airstreams rallies outside of WBCCI. We are also Good Sam members.
SuEllyn & Brian McCabe
WBCCI #3628 -- AIR #14872 -- TAC #FL-7
2015 FC 25' FB (Lucy) with HAHA
2005 Suburban 2500 Quadrasteer (Olivia) & 2011 Silverado 3500 (Fred) with Outfitter Truck Camper (Ethel)