http://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. New research suggests the more friends we have on Facebook, the less likely we are to share information about charitable causes. http://phys.org/news263469955.html Other Sciences Mon, 06 Aug 2012 11:06:06 EST news263469955 On the global social media stage, it's not so much the message but rather network structure and competition for attention that determine whether a meme becomes popular and shows staying power or whether it falls by the wayside, research led by Indiana University has determined. http://phys.org/news252657738.html Other Sciences Tue, 03 Apr 2012 07:42:41 EST news252657738