Online Science Magazines
Science Daily
Discover Magazine
Scientific American
http://www.scientificamerican.com/
Science News
New Scientist
Science Magazine
National Geographic
http://www.nationalgeographic.com/
EurekAlert! (This website offers free access to articles detailing the latest research findings in such fields as: science, medicine, technology and health.)
Physics News Update
http://www.aip.org/physnews/update/
Nature