Science Magazine - http://www.sciencemag.org/
Global weekly journal of research which serves the scientific community as a forum for the presentation and discussion of important issues related to the advancement of science

New Scientist - http://www.newscientist.com/
Daily science news, hot topics on some of the current issues facing our world today, plus selected content from the magazine

ScienceDaily - http://www.sciencedaily.com/
Magazine offering the latest science news

Science News - http://www.sciencenews.org/
Magazine covering the latest news on all areas of science. Science News includes articles, features, columns, and blogs

SciDev.net - http://www.scidev.net/en/
Reports on science and technology with particular relevance to sustainable development and the needs of developing countries

Physics Today - http://www.physicstoday.org/
Flagship publication of the American Institute of Physics (AIP)

Issues in Science and Technology - http://www.issues.org/
Publishes articles that analyze current topics in science, technology, and health policy, and recommends actions by government, industry, academia, and individuals to solve pressing problems

Geotimes / EARTH - http://www.earthmagazine.org/
News magazine for the earth and environmental sciences published by the American Geological Institute (AGI)

National Geographic Magazine - http://ngm.nationalgeographic.com/
Online edition of the popular magazine