US Department of State
Unpaid summer internships abroad are available at certain U.S. embassies and consulates in the political, economic, or administrative sections. A minimum of 10 weeks is required, and interns are expected to work a 40-hour week. When available, the embassy or consulate may provide lodging. Deadline for receipt of application for summer internship is November 1st. Application forms can be obtained at the International Internship office or by writing to:

Idealist
Idealist offers information about jobs and internships with NGO’s throughout the world.
http://www.idealist.org

NACE Jobweb
A great website from NACE which provides a list of articles and job databases for international jobs and internships for recent college graduates:
http://www.jobweb.com/Resources/Library/International/default.htm

Adventures Abroad
Adventures Abroad has some good information on overseas travel and occasionally some good internship opportunities
http://www.adventuresabroad.com

PlanetEdu’s
PlanetEdu’s internships directory allows you to search an extensive directory, hosting a vast amount of internships around the globe. If you’re looking for summer internships or something for the regular school year for business, law, psychology or any number of subjects, PlanetEdu’s search directory for Internships can help.
http://www.planetedu.com/category/internships/

University of Michigan- International Center
Provides articles and a database on available internships in Latin America.
http://www.umich.edu/~icenter/overseas/work/latinamerica.html

International Jobs
Info on international jobs and job searches
http://intljobs.about.com/library/weekly

Labour Mobility
Knowledge when it comes to the day-to-day aspects of working and living abroad
www.labourmobility.com

International Association of Students in Economics and Commerce
International Association of Students in Economics and Commerce is a university based, worldwide internship program for student members interested in business and management.
www.us.aiesec.org

Council on International Educational Exchange
Council on International Educational Exchange "Work Abroad Programs" supplies the necessary work documents, practical information on finding work and housing and is an organization to turn to if you need assistance.
www.ciee.org

International Association for the Exchange of Students for Technical Experience
International Association for the Exchange of Students for Technical Experience offers worldwide internships to juniors and seniors in Engineering, Architecture, Mathematics, Computer Sciences, Natural and Physical Sciences.
www.iaeste.org

Council Exchanges
For college students or recent graduates who have 3-6 months to work abroad. Offers typical jobs in the tourist and service sectors as well as career jobs and internships.
www.councilexchanges.org

Transitions Abroad
Transitions Abroad is a bimonthly full-color magazine guide to practical information on affordable alternatives to mass tourism (available in Career Services): living, working, studying, or vacationing alongside the people of the host country. Website contains useful work abroad links.
www.transabroad.com

University of Minnesota
University of Minnesota searchable directories of study, internships, and scholarships abroad.
www.istc.umn.edu

University of California
University of California, Irvine International Opportunities Program. Site outlines internship programs and web sites for Best Bets For Internships Abroad.
www.cie.uci.edu/iop/internsh.html

Bilingual Jobs
Job postings and resume profile. Offer full-time and contract opportunities.
www.bilingual-jobs.com

International MonsterTrak
Browse jobs by international location, industries and professions as well as by seniority level (entry, mid-management, executive).
http://international.monster.com/search

Top Jobs
Search for international jobs by location and job category.
www.topjobs.net

Study Abroad
A consortium of dozens of university study abroad programs that provides excellent information on exploring cultural differences.
www.studyabroad.com

Association for International Practical Training
Non-profit organization offering internships in 65+ countries. Also offer assistance with work permits.
www.aipt.org

One World
Access jobs and volunteer opportunities in human rights, environment, and sustainable development.
www.oneworld.net

CDS International
Founded in 1968 CDS is a non-profit organization committed to the advancement of international practical training opportunities for young professionals, students, educators, as well as labor, business and government representatives. CDS started out small, arranging internships in U.S. companies for young German professionals and exchanging farmers between Germany and the United States. Today, CDS serves almost 1,400 individuals annually from over 50 other countries in Europe, Asia and South America in a variety of work/study, internship, and study tour programs. Students can intern for money in Germany and a variety of other countries.
http://www.cdsintl.org

InterExchange
An organization that sets up internships in France, Britain, Costa Rica and Belgium.
http://www.interexchange.org/workingabroad/index.html

Cross-Cultural Solutions
A nonprofit organization that sends volunteers abroad to provide humanitarian assistance in Brazil, China, Costa Rica, Ghana, India, Peru, Russia, Tanzania and Thailand.
http://www.crossculturalsolutions.com/

DevDir
Provides a Directory of Development Organizations Worldwide
http://www.devdir.org/

ReliefWeb
A list of NGOs by country can be found at:
http://www.reliefweb.int