Altmetrics: metrics or index? | Public Understanding of Science Blog

"Is altmetrics a suite of metrics for research impact evaluation based on data from the social web that is going to disrupt the primacy of citation-based metrics? Or is it an indicator of how a research is connecting with its target audiences after publication data that helps researchers to identify potential impact stories and gather evidence for case studies? To answer this question (and a few more), I interviewed Catherine Williams, Chief Marketing Officer at Altmetric."