social media altmetrics are a significant contributor to citation prediction,

Articles on alternative metrics by the Public Library of Science (PLOS).

Altmetric's mission is to track and analyse the online activity around scholarly literature. They believe that
- Authors should be able to see the attention that their articles are receiving in real-time.
- Publishers, librarians and repository managers should be able to show authors and readers the conversations surrounding their content.
- Editors should be able to quickly identify commentary where a response is required.
- Researchers should be able to see which recent papers their peers think are interesting.

"Impactstory is an open-source, web-based tool that helps scientists explore and share the diverse impacts of all their research products—from traditional ones like journal articles, to emerging products like blog posts, datasets, and software."