Pre-travel Preparation

• US Department of State – Register My Trip
• US Department of State – Passport Information
• US Department of State – Visa Information
• US Department of Homeland Security
• Lonely Planet
• Rough Guides
• Currency Converter
• World Clock
• Conversions and Calculations
• World Weather
• International Emergency Numbers
• Subway and Transit Systems Worldwide

Country Specific Information

• The Library of Congress Country Studies Page
• CIA World Fact Book
• US Department of State – Consular Information Sheets
• US Embassies and Consulates Worldwide
• Foreign Embassies in the United States

Travel Health & Safety Information

• Top Ten Travel Tips
• Safety Abroad Handbook: Country-Specific Handbooks
• International Student Identification Card (ISIC)
• Centers for Disease Control and Prevention

Discount Air Travel

Worldwide Travel
Wikipedia Low Cost Airlines   
Which Budget
Attitude Travel

USA Travel
STA Travel
Student Universe

European Travel
Ryan Air
Easy Jet
Sky Europe
Sky Scanner
Cheap Flights

Asian Travel
Kingfisher Airlines
Spice Jet
Jetstar Asia Airway
Valuair
Tiger Airways
Nok Air
AirAsia
One-Two-Go

Rail Travel
Eurail

Youth Hostels
Hostelworld

Trip and Flight Cancellation Insurance
Travel Guard
STA Travel
Travel Insurance Services
Insure My Trip