Altmetric
Connotea Imports 2012-07-31
Summary:
"Altmetric measures the attention that scientific articles receive on social media sites, in online reference managers and from mainstream news sources.
Altmetric tracks tens of thousands of article mentions a month across Twitter, Google+, Facebook, the scientific blogosphere and publishers including The Guardian, the NYT and New Scientist. It assigns scientific papers a score derived from this data. Around 20% of all new papers added to PubMed each month are covered (Altmetric covers articles not found in PubMed too)...."