| This is the home page for the Population Reference Bureau (Washington, USA). This site provides useful information on many topics related to human populations, such as world population, migration and demographics. It also contains a glossary of population terms and lists its many and varied publications on population-related issues. |
| This is the home page of the United Nations Population Fund (UNPFA) -–a useful site that provides information on the state of the world’s human population and many other related issues. |
| This is the home page of the NERC (Natural Environmental Research Council) Centre for Population Biology at Imperial College, London. Part of this site concerns the Ecotron project, which looks at the population dynamics and ecosystem functioning of entire model communities. |
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