Link to Official U.S. Documents
Clicking on any of these requests, will automatically send you to the Official Travel Document site where you can fill out the forms and pay for Birth Certificates, Visas and Passports. 

Cost depends on the travel document kit and the speed with which you need to have the documents delivered.
CIBT expediting Services for Visas and Passports
US Department of State Passports/ Travel
(For discount enter 60032 for account #)