Action without Borders - Non-profit jobs and internships, mostly in the U.S. but includes some international opportunities.
AIESEC - Runs the worlds largest work abroad exchange program, placing young professionals and students in the world's leading companies.
Connect-123 Internship Programs - facilitates career-related internship and service learning opportunities for undergraduate and graduate students in Cape Town, South Africa and Buenos Aires, Argentina in a wide range of fields.
Global Vision International - Global Vision International (GVI) runs responsible volunteering programs in over 40 countries around the world, offering hands-on experience by personally contributing to important conservation initiatives and community projects.
Global Vision International Careers Abroad - Are you looking for a job in the volunteer abroad industry, work experience abroad or training to allow you to look for work in the exciting fields of conservation, wildlife research, international education or managing international volunteers?
IAESTE - Nice collection of links and resources for U.S. and international internships.
International Computing Center - Available Internships for students in Information technologies in their final year or after graduation with the United Nations International Computing Center
Intrax Intern Abroad - Intrax Intern Abroad (IIA) is a professional career development program focused on providing students with practical, professional work experience and global skills training in London, Paris, Barcelona, Tokyo, and Costa Rica.
Start Easy Career - Assists students in finding courses, internships, works and accommodation abroad. Currently operating in a number of cities in France, Germany, Spain and UK but will move into other countries as well.