Altmetric is a 3rd party web application that can be downloaded from Altmetric website. It monitors social networks, mainstream media outlets and reference managers for mentions of academic papers. Instead of replacement to established metrics, Altmetrics is regarded as a way to augment mainstream bibliometrics.
Scopus source data powered by altmeric.com
Altmetrics data is now available across many of the articles on Wiley Online Library following the successful pilot across Open Access articles.
The Altmetric.com, who provide the data, collect article level metrics and the online conversations around research papers by tracking a selection of online indicators (both scholarly and non-scholarly) to give a measurement of digital impact and reach. 'Mentions' that contain links to any version of the same paper are picked up, and collated. The result is the Altmetric score.
The Altmetric data available on the journal articles allows you to:
The score for an article rises as more people mention it.
Each category of mention contributes a different base amount to the final score.
How often the author of each mention talks about scholarly articles influences the contribution of the mention.