Biodiversity Heritage Library - Natural history and botanical garden libraries' digital collections

HowStuffWorks - Credible, unbiased, and easy-to-understand explanations of how the world actually works.

Inventor Archive - Biographies of inventors

Online Conversion - Convert just about anything to anything else

Periodic Table of the Elements

Science360 Knowledge Network - Current science videos by leading researchers, sponsored by the National Science Foundation.

Science Daily - Breaking news about scientific discoveries

Time zones and world clock



Last updated: September 12, 2014