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.