Social networking site that enables scientists, engineers, and other technical professionals to connect, collaborate with, and learn from each other.  Read more...

Online forum with extensive posts covering curriculum, curriculum swaps, legal rights for homeschoolers, teen forums, and special needs.  Read more...

An advanced discussion forum for science, philosophy, and related matters. Multiple forums, career announcements, and a dynamic IRC chatroom.  Read more...

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