The list comes from
http://www.cleanrun.com
on the top bar there is a link to agility resources and information. You can search for clubs, seminars, etc. in your area. Please also look at this site (my small dog info center). I have listed links and general information on small dog sports - so you can click around and visit sites that will be helpful to you (look esp. under "Training" and scroll down to agility):
Mighty Mite Small Dog Info Center
I esp, suggest reading the "interview" - "Live from the AKC National Championships" - Pam Selby, AKA "Desi" gives a lot of helpful advise for people starting out in agility with small dogs.