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.
Overpopulation.com - 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 Control Agenda - Essay explains different methods of coerced population control through forced abortions, sterilizations, genocide and AIDS.
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."