Many topics covered; for beginners to serious researchers.

Serious discussion about traditional and alternative topics in science.

A place to post about any science-related topic.

Multiple message boards cover general advanced topics, news articles careers, original works, and religion as it relates to science.

Discussion topics include astronomy, cosmology, biology, chemistry, earth sciences, physics, social sciences, health, medicine, history, economics, business, engineering, computer science, math and environmental issues.

Make inquiries about science and math topics, as well participate in discussions and debates.

Private group. Discussion topics include research projects, ideas, information, conference notices, fellowship award announcements, and examination details.

Discussions and research projects of the members of the Society as well as guest contributors. Registration required to post; guest access available to browse.

A community of students, technicians, post-doctorates, and researchers to have discussions of science, lab-life, careers, and education.

A polymer discussion forum for the plastics and rubber industry worldwide.

Announcements and news, equipment, astrophotography, specific equipment, observing, specialty, manufacturers, and galleries.

Bulletin boards on physics and related subjects. Includes related polls and a list of active threads.

Applied physics, nanotechnology, quantum physics, and semiconductor technology. Also discussions of the latest physics news.

Several forums for discussion of general beekeeping topics. Includes forums for beginners, on pests and diseases, and on breeding.

A group for proposing problems, sharing ideas, discussing areas of research and reviewing papers and books of interest. [Requires Yahoo! membership]

A series of different threaded forums for discussing famous people as well as topics related to astronomy and astrophysics.

Intended primarily for physics majors, graduate students, postdocs and faculty. Get meeting information, theoretical and research information and exchange of ideas. Meant for the physics community throughout the world.

Discussion of telescope and accessories for owners and anyone considering using the ETX.

Mailing lists and discussion groups (including former OneList and eGroups).

General, observing, imaging, equipment, news, clubs, and education.

Discussion of turf problems. May load slowly due to the large number of messages.

Against the mainstream, general, Martian chronicles, lunar conspiracies, bad TV and bad movies, the book, and Planet X.