There's another social networking web site for scientists, and this one, called Epernicus, claims to already have "enabled thousands of scientists at close to 1,200 institutions in 57 countries to find other researchers with specific skill sets, averting the time-consuming, labor intensive processes of tracking down scientists who have information that they need," says a press release. "Think of us as a Facebook or LinkedIn for scientists but with a concrete purpose," says co-founder Mikhail Shapiro.