General

Students Abroad
http://studentsabroad.state.gov/

The U.S. State Department manages this site containing helpful information on studying abroad. A comprehensive site including information on travel warnings, travel tips, and health and safety abroad.

Mobility International
http://www.miusa.org/

Non-profit organization provides information on education and travel abroad for people with disabilities.

Health, Safety, and Insurance

U.S. Centers for Disease Control and Prevention
http://wwwnc.cdc.gov/travel/

The U.S. Centers for Disease Control and Prevention provide comprehensive health information for travel to over 200 destinations worldwide. 

Health insurance for international travelers
http://www.cmi-insurance.com/

Provides global medical accidents and sickness insurance product for international travelers. 

International Society of Travel Medicine
http://www.istm.org/

Offers pre-travel immunizations, counseling and medicine to help protect travelers while traveling internationally. 

HTH Worldwide health and safety abroad videos
http://www.youtube.com/playlist?list=PL368698865CF956AD

Dr. Frank Gillingham, medical director for HTH Worldwide, offers insights on health and safety abroad.

Embassies and Consulates

Embassy World
www.embassyworld.com

Directory and search engine of every nation's embassies and consulates.

U.S. embassies, consulates, and diplomatic missions
http://www.usembassy.gov/

U.S. embassies around the world. 

Foreign consular offices in the United States
http://www.state.gov/s/cpr/rls/fco/

Contains a complete and official listing of the foreign consular offices in the United States, and recognized consular officers.

Passport and Visas

U.S. Department of State Passport Information
www.travel.state.gov/passport/

Information on applying for and renewing passports.

Passport, visa and legalization specialist
http://www.perryvisa.com/

Review international travel requirements and secure passport, visa, legalization or translation. 

VisaCenter.com
http://visacenter.com/

VisaCenter.com is one of the largest travel visa and passport companies in the world.

International Students Identity Card
http://www.myisic.com/

The International Students Identity Card (ISIC) is the largest recognized student ID for all full-time students in the U.S. Also, the card includes travel insurance in the event that you must be transported back to the U.S due to illness or death.

Money Matters

World's currency exchange
http://www.xe.com/

Offers commercial grade currency data for every world currency.

VISA ATM locator around the world
http://visa.via.infonow.net/locator/global/

Locate ATM machines anywhere in the world.

Planning, Packing, and Travel

Tips for traveling abroad
http://www.travel.state.gov/travel/tips/tips_1232.html

The U.S. State Department's list of comprehensive tips for traveling abroad.

National Association of College and University Business Officers country guides
http://irc.nacubo.org/countries/Pages/default.aspx

Guides to select countries designed for faculty and staff interested in either traveling to or conducting business activities abroad.

International travel checklist
http://www.tripresource.com/beforeyougo.htm

Good suggestions for items to pack. 

Flash Booking travel guides
http://www.flashbooking.com/dynamic/guides

Free pocket travel guides for popular destinations: Amsterdam, London, Rome, Paris, Barcelona, Lisbon, Istanbul, Prague, Naples, Madrid, Florence, Berlin, Beijing.

Travel language service
http://www.travlang.com

Provides links to useful sites related to language, such as a guide to what languages are spoken in what countries, online language-learning sites and online dictionary. 

Miscellaneous

National Geographic map machine
http://maps.nationalgeographic.com/maps

Offers maps, satellite images, basic facts and street maps. 

Internet cafés abroad
http://www.cybercafe.com/

Provides location, name and service hours of internet cafés in more than 141 countries. 

Earth Calendar
http://www.earthcalendar.net/index.php

Daybook of "holidays" or cultural events and celebration around the world. 

Federal Voting Assisting Program
http://www.fvap.gov/

Voting site for United States citizens who are living outside the country for work, school or other reasons.