Ethics -- entry from the Internet Encyclopedia of Philosophy: This section of the Internet Encyclopedia of Philosophy contains a list of topics in ethics and links to access related content
Ethics Updates: ". . . dedicated to promoting the thoughtful discussion of difficult moral issues." From the University of San Diego, this is a link to resources related to ethics covering classical subjects such as Kant, Aristotle and contemporary issues such as abortion, reproductive technologies, environment, etc.
Utilitarian.net: This site is dedicated to resources on utilitarianism, including papers from Peter Singer, a leading utilitarian.
The elements of moral philosophy by 
