For more information on utilitarian theory, visit http://ethics.acusd.edu/theories/Utilitarianism/, which provides links to many articles on this theory.
Feminism as an ethical theory is explained in more detail at http://plato.stanford.edu/entries/feminism-ethics/.
One of the many Web sites that provide more information on Rawls and his theories is http://oak.cats.ohiou.edu/~piccard/entropy/rawls.html.
The social contract theory can be explored more fully at http://plato.stanford.edu/entries/contractarianism-contemporary/.
See "Wizzinator, a Fake Urine Device, Makes Drug Testers Go the Extra Mile," Roanoke Times, June 20, 2002, p. A5. See also http://www.thewhizzinator.com/forms/whiz11.htm.]