San Diego Ultralight Association
Here are a number of links that pilots and non-pilots may find useful
...
FAR Part 61 - Certification: Pilots, flight instructors, and ground instructors
FAR Part 91 - General operating and flight rules
FAR Part 103 - Ultralight vehicles
FAR Part 21 - Certification procedures for products and parts
FAR Part 43 - Maintenance, preventive maintenance, rebuilding, and alteration
FAR Part 65 - Certification: Airmen other than flight crewmembers
Julie Keane Aviation
John Shablow -- DAR Services
Jeff White -- CFII
Jerb Johnson -- CFII