AAVSO: American Association of Variable Star Observers
The American Association of Variable Star Observers: Professional and Amateur collection, research, and analyzation of variable star observations.
www.aavso.org/   reviews

The Astronomical League
A confederation of astronomical societies, with over 18, 000 individual members. Observing club, awards, astronomical information, educational information, and more.
www.astroleague.org/   reviews

Peoria Astronomical Society
Insert brief description here ...
www.astronomical.org/   reviews

Ventura County Astronomical Society
www.vcas.org/   reviews

Amateur Astronomers Association of Princeton - New Jersey's premiere astronomy club
New Jerseys premiere astronomy club ...
www.princetonastronomy.org/   reviews