American Scientist.org
Cell.com
Cosmos Magazine.com
Discover Magazine.com
e! Science News
EurekAlert! - Science News
HowStuffWorks - Science
Inside Science.org
Live Science.com
National Geographic
Nature.com
New Scientist.com
NOAA - National Oceanic and Atmospheric Administration
Phys.org
PNAS.org - National Academy of Sciences
Popular Science
SciCentral.com - Science news
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Science News.org
ScienceDirect.com - Science journal articles
ScienceMag.org
Scientific American
The Scientist Magazine
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Society for Science.org
TreeHugger.com
The Why Files