These four sources of primary texts of philosophy will be useful to students for outside reading assignments:
Marxists Internet Encyclopedia The source for anything to do with the past, present, and future of Marx and his followers. Includes biographical sketches, texts, and letters. The latter includes letters from Jenny Marx to Engels and others.
United Nations Women Watch: Women, Peace and SecurityThe UN site for information of on all aspects of women in international politics.
Stanford Encyclopedia of Philosophy An excellent peer-reviewed free encyclopedia that features articles on all schools of thought.