Astrobiology
Discusses the origin of life on earth and in space.

The Astrobiology Institute
Keep abreast of the latest news and information related to astrobiology. You must register to view portions of the site but registration is free.

Cosmic Ancestry
Resources pertaining to panspermia, the cosmic theory of evolution and life on earth.

Extraterrestrial Life in the Cosmos
Information on the search for extraterrestrial life.

The Kepler Mission
Join the search for "habitable planets."

Life in Extreme Environments
Find news articles and related sites about microorganisms that thrive in the most uninhabitable environments.

Marsbugs
An electronic exobiology newsletter dedicated to providing information pertaining to planetary science and exobiology.

The Nine Planets
Take a "multimedia tour" of our solar system.

SETI Institute Online
Dedicated to the search for life in the universe.