Snipers Ferret Network 
All member sites have something to do with ferrets or other small animals. Includes form to be added to the webring and HTML code to copy and paste.
http://www.angelfire.com/il/rachellenick/webring.htmlAll Things Ferrety
Web ring devoted to ferret enthusiasts.
http://b.webring.com/hub?ring=ferrety
Tater and Odie's Joy to the World! Ferret Ring
A place where ferret folks and ferrets can come together to celebrate the joy that this unique association of human and pet can create. Includes description of webring and instructions on how to join.
http://members.aol.com/emssandy/ring.htm
Ferret Fanatics
For non-commercial family-friendly ferret sites. Includes instructions on joining the ring and examples of graphics.
http://www.dookranch.com/Rings.html
