"For adoption of new technologies in science, it has to be an order of magnitude more useful than current tools. We just don’t have the time to waste learning new tools that only marginally increase our productivity." Discussion: http://friendfeed.com/science-2-0/bceaea67/scientists-still-not-joining-social-networks
"free, social networking site that enables scientists, engineers, and other technical professionals to connect, collaborate with ... world-wide scientific communication and incorporates the newest social networking technologies." - "Yet another Facebook for Scientists that I am unlikely to use." http://tinyurl.com/55ngbf