4 links
The 325 Connection
geocities.com
Photographs of vintage 310 - 325 Rickenbacker guitars in private and public collections, also featured are a number of rare and interesting transitional Rickenbackers.
The Rickenbacker Registration Page
rickresource.com
A historical and technical resource for Rickenbacker instruments; includes articles, details of artists who played them, news, photos, and a forum.