- A proposed update to the Drake Equation that describes why the sky isn't saturated with radio signals; suggests alien civilizations may not be curious enough to contact others.
- According to a September 2002 Roper poll, two thirds of US citizens don't believe their government is disclosing the truth about an extraterrestrial presence.
- A brief overview of the search for extraterrestrial intelligence and Frank Drake in particular. Definitions of the Drake Equation's components and a Drake Equation calculator.
- The magazine of SETI and Bioastronomy. Provides both professional and amateur astronomers with information concerning SETI (Search for Extraterrestrial Intelligence) and bioastronomy.