I’ve already come up with lists of the best medical places in Second Life; the best medical wikis and the best services with medical videos/animations. So it’s time to dedicate another one to community sites created for scientists and physicians. This idea came to my mind when I read the post of Bora Zivkovic.

• ResearchGATE: Registered users of the free-of-charge platform can present their research work in a personal profile, exchange messages and build groups for peer-to-peer discussions (more).

• Nature Network: Nature Network is the online meeting place for you and fellow scientists to gather, talk and find out about the latest scientific news and events. Science is an international endeavor and deserves a global stage for discussion.

• SciLink: an online community with the goal of helping you to discover scientists, authors, and relationships (more).

• SocialMD: SocialMD is a great new way to network with other physicians. Whether you are a medical student, resident, fellow or physician you will find that SocialMD is a great way to meet and network with other medical professionals (more)

• DoctorsHangout.com: DoctorsHangout.com social network can help you maintain existing personal and professional relationships and establish new ones by reaching out to Doctors you’ve never met before (more).

• Jeff’s Bench: Students and post-docs need to be able to have more of these interactions. We hope this site will be used to foster those interactions.

• BiomedExperts: the first literature-based scientific social network - brings the right researchers together and allows them to collaborate online. Collexis provides the BiomedExperts social network free of charge for researchers worldwide in an effort to increase collaborative biomedical research for the common good.

• SciBook in Facebook: Social Networking for Life Scientists

• Ozmosis: a new community, currently in private beta, created by physicians for physicians. Members have to be verified during the registration process (more).

• Sermo: We are a practicing community of 65,000 physicians who exchange clinical insights, observations, and review cases in real time — all the time.

• Tiromed: Ask a mentor or become a mentor. Upload your CV and find collaborators from around the world, or find a job via this community.

• LabSpaces: a brand new social network that was developed to spread scientific news, maintain and create friendships, and harbor collaboration in the sciences.

• Research Crossroads: Centralizing scientific and medical funding data so that researchers gain recognition for their work and funders make better investments.

• Mendeley: If you deal with academic knowledge, then Mendeley will make your life easier. It’s a combination of desktop software and social network which helps you manage, share and discover both content and contacts in research. It’s easy to use, and it’s free.

• Within3: Within3 is the private professional networking site exclusively for health and life science practitioners to find, connect and collaborate with the right colleague, right now.

• MyNetResearch: Our purpose is to assist you in maximizing your research productivity through global collaborations. We all have outstanding colleagues, yet have felt the disappointment of these colleagues not sharing our research interests and passions.

• Scientist Solutions: Scientist Solutions is a life sciences discussion board run by scientists for scientists with the mission to connect every scientist in the world. This site is moderated by a team of scientific staff. It is our hope that Scientist Solutions will encourage the exchange of information between investigative researchers and thereby contribute to the advancement of Science.

• ScienceStage.com is a virtual conference room, lecture hall, laboratory, library, and meeting venue all in one. It offers new methods of scientific presentation, scientific discourse and academic knowledge transfer by using video streaming, audio streaming and text features.

• Academia.edu: It displays academics around the world in a tree format, according to what university/department they are affiliated with.

Let me know if you know more.