Catholic Educator's Resource Center: Population: An annotated bibliography of resources on population, human rights abuses, and the history of population control.
Defusing the Population Bomb: Commentary by Stephen Moore of the Cato Institute.
International Population Stabilization and Reproductive Health Act (S. 1029): Congressional testimony by Sheldon Richman of the Cato Institute. Argues that there is no population problem.
Overpopulation - Information and resources on the overpopulation debate: Includes an extensive FAQ (which argues that population pressures will not lead to disasters predicted by people such as Paul Ehrlich), book reviews, links, a discussion forum and regular updates on population-related news.
Population Research Institute: Documents abuses of human rights in pursuit of population control; argues for moderate population growth and "economic development models which respect the dignity and rights of the individual human person and the family."
The Doomslayer: Wired magazine article on population economist Julian Simon.
The Law of Increasing Returns: Commentary by Ronald Bailey arguing that the explosive growth in ideas has allowed the world to support more people at an increasing standard of living.
The State of Humanity: Good and Getting Better: Commentary by Julian L. Simon and Sheldon Richman. Argues that progressive trends will continue indefinitely.