I'm in central california so I regularly ride at Buttonwillow, Willow Springs, Laguna Seca, Thunderhill, and Pahrump.
For suspension work I depend on Dave Moss.
The two resources you should check out:
1) Dave's youtube "how to" videos (On The Throttle TV)
2) If you are curious about the details of how the internals work and want step by step instructions on how to do the mechanical work yourself, order Racetech's "Suspension Bible".