Here are the new features from other networks, which can be found on the right-hand panel under the logo for the respective site:
Ars Technica Good for something: tracking social influence through Farmville: Researchers tap into the mysteries of behavioral contagion by figuring out the exact point at which a Facebook app attains social influence. Nice post by John Timmer.
Scientific American Student Surveys Contradict Claims of Evolved Sex Differences: JR Minkel presents new research that challenges the idea that we’ve evolved with the “eager male-choosy female” sexual mindset.
Wired Lassa fever: Coming to an airport near you: Maryn McKenna dispels the notion that only Africa needs to worry about viral hemorrhagic fevers, citing recent cases in the US.