The Metrics Toolkit explore by different types of publications and select metrics for particular types of impact, research and discipline.
Research Impact Assessment Services pages:
Alternative or 'Alt'metrics are based on counts generated by the use of and interaction with digital information, such as number of downloads and pageviews from a publisher, repository, or online reference manager, or mentions in online venues such as Reddit or blogs.
Alternative metrics can be used to complement traditional metrics, to measure engagement with broader public, news media or social scholarly forums. The types of metrics include:
The following video from Altmetric.com provides an introduction to altmetrics:
Altmetric data can show: