- LabRoots - Social networking site that enables scientists, engineers, and other technical professionals to connect, collaborate with, and learn from each other.
- Groupsrv.com - Serious discussion about traditional and alternative topics in science.
- The Science Forum - Discussion topics include astronomy, cosmology, biology, chemistry, earth sciences, physics, social sciences, health, medicine, history, economics, business, engineering, computer science, math and environmental issues.
- Science Forums - Many topics covered; for beginners to serious researchers.
- Sapo's Joint - A moderated discussion forum focused primarily on hard sciences, with additional topics devoted to the artistic interests of our members. Online Chat and LaTeX support are included.
- Element Science Community Forums - A place to post about any science-related topic.
- Science Chat Forum - An advanced discussion forum for science, philosophy, and related matters. Multiple forums, career announcements, and a dynamic IRC chatroom.
- Plastictalk Forum - A plastics discussion forum for the plastics and rubber industry worldwide.
- Survival Blog for Scientists - Professional scientists write about their scientific life with the aim of giving others tips on how to survive in science.
- SciLife - Online networking, communication and presentation platform specially designed for the needs of researchers who can present their work, groups and resources to potential partners in science and industry.
- PhyChemBioMath Forums - Forum for the discussion of problems for scientists and college students.
- Space Alliance - Forum covering space technology, in English and Romanian.
- Solar Power Forum - Open discussion on solar power systems and other renewable energy systems.
- Indian Science SciForum - Science discussion board and networking site for science scholars. Boards include news and research topics in chemistry, biology, physics, math, biotechnology, biochemistry, bioinformatics, immunology, nanotechnology, engineering, medical and agricultural science.
- Sci-Tech.co.uk - A place to learn and discuss various aspects of science and technology and how they interact.
- UseSrv.com Message Forum - Lively discussion about various aspects of science and medicine.
- IntellectToday - An intellectual community focused on science and technology, philosophy and related subjects.
- The Science Forums - Active forums covering all areas of science. Everybody is welcome, regardless of level of scientific knowledge.
- The Science Hub - Topics astronomy, behavioral science, biology, chemistry, geology, climate, medicine, math, and physics.
- Nerdy Science Blog - A group of nerds who are passionate about science record their thoughts.
- Universal Scientist - Forum covering a wide range of scientific topics.