Altmetrics "is the creation and study of new metrics based on the Social Web for analyzing, and informing scholarship."
For further reading:
A. Brown, J. Cowan, T. Green. (2016). Faculty productivity: Using social media and measuring its impact. 2 May 2016. http://er.educause.edu/articles/2016/5/faculty-productivity-using-social-media-and-measuring-its-impact
Altmetric (includes Bookmarklet for Firefox/Chrome) "Each week Altmetric captures hundreds of thousands of tweets, blog posts, news stories and other content that mention scholarly articles."
Altmetrics Using programs like citation management tools Zotero and Mendeley, social networks like Twitter, and blogging to provide scholarship metrics.
ImpactStory (formerly Total Impact) The open-source tool provides a comprehensive look at a scholar’s research impact, ranging from journal article metrics to blog posts, datasets, and software.
Relative Citation Ratio / iCite "A field-normalized metric that shows the citation impact of one or more articles relative to the average NIH-funded paper." The iCite tool allows you to check papers listed in PubMed and SPIRES and includes additional metrics.