Here are some Links you may find helpful

Have a look around but...
Surf at your own risk, no lifeguard on duty

FAA Office Of Regulation and Certification Home Page

FAA Aircraft Certification Home Page

FAA Designee and Delegation Web Site

Blank 8110-3 and Other Forms

Blank 337 and Other Forms

Aircraft Owners & Pilots Association Home Page

Seaplane Pilots Association Home Page

Soaring Society of America Home Page