Science, with the impact factor (ISI) higher in their field, offers a scientific portal with multimedia, scientific events, resources for teaching, etc.
AAAS -- the American Association for the Advancement of Science -- is Science
publisher, and a leading voice for the interests of scientists
worldwide. It is the world's
largest general-science society; through its
primary membership and its affiliations with some 262 scientific
societies and
academies, it serves 10 million individuals. The
organization's mission, simply stated, is to "advance science and serve
society".
This it does not only through publication of Science, but through annual meetings, public outreach, activities to boost
international scientific cooperation and sustainable development,
policy advocacy, educational programs, press
relations, and efforts to boost the public understanding of -- and
appreciation
of -- the scientific enterprise.
The webpage direction is: http://www.sciencemag.org/search.dtl