Council of Science Editors (CSE)
The Council of Science Editors (CSE) aims to improve communication in the sciences by educating authors, editors, and publishers.
http://www.councilscienceeditors.org
Forum on Physics and Society
Division of the American Physical Society for discussion of science and society issues.
http://www.aps.org/units/fps/
Institute of Science in Society
Membership organization in the UK, offering news articles, mailing lists, and membership information
http://www.i-sis.org.uk/