SummerJobs :: Search by keyword or by location. Mainly international listings. http://www.summerjobs.com/
Career Center Site :: Summer job listings, scholarships, fellowships, volunteer and internship opportunities. College of William and Mary. www.wm.edu/csrv/career/stualum/jshort.htm
Travel Industry :: International work and internships - The Council on International Education Exchange. www.ciee.org/
Social, Medical and Political Areas of Geography :: Internship programs at the Carter Center. www.cartercenter.org/
Woman's Stats :: http://www.womanstats.org/
Mastering the Skill of Networking, Scoring a Great Internship, 2003.
Top 5 Strategies for Landing Your Dream Internship, by Tami Gove, InternWeb, 2000.
Top 5 Strategies for Making the Most of Your Internship, InternWeb, 2000.
Experience an International Internship, by Mark Shay, JobWEb.