Rapid Visa – The fast, affordable way to file your family immigration petitions. Free Account required.
Visa Centro – We help you complete your US visa application process with accuracy and ease, at a fraction of what attorneys charge.
Travel.State.Gov US Visas – US Department of State – Bureau of Consular Affairs
Visa HQ – Passport and Visa Services – VisaHQ is a private visa agency, not affiliated with the government. VisaHQ provides expediting services for travel visas and charges a service fee.
Department of State US Visas – Travel to the United States
Department of State US Passports – Applications and Forms
Electronic Embassy Website – A resource of and for the Washington, D.C. foreign embassy community
US Passports and International Travel – Learn about your destination. Country Specific Information, Travel Alerts and Travel Warnings.
Passport Info – Countries that Require Visas for US Citizens
Global Allianz – Visa Free Countries for US Citizens
Cibt Visas – Visa Quick Check – If you are a US citizen who wants to know if a visa is required for your trip. Nice site with good information. You can even start your application from this page.
Brilliant Maps – The 99 Countries Americans Can Visit Visa-Free
Gadling – 10 Countries Americans Need Advance Visas to Visit. With prices and information concerning each country.