From an OJS Blog Post by Juan Pablo Alperin:
PKP [Public Knlowledge Project] is pleased to announce the release of the Paperbuzz Plugin for Open Journal System (OJS) versions 3.1.2 and above, built in cooperation with the Paperbuzz team at Impactstory. This new plugin will bring free altmetrics (an alternative to traditional citation-based metrics) based on open data to thousands of OJS journals.
What is Paperbuzz?
Paperbuzz is a free and open service built by Impactstory with PKP’s support. It takes the complex data collected by Crossref Event Data and calculates metrics for every article that has a digital object identifier (DOI) registered with Crossref.
What is Crossref Event Data?
Crossref Event Data is a service that tracks events on the Web like bookmarks, links, shares, etc. whenever the event is connected to Crossref metadata. At this point, Crossref Event Data is collecting data from the following sources: Crossref links, DataCite links, Hypothes.is, Newsfeed, The Lens, Plaudit, Reddit, Reddit Links, StackExchange, Twitter, Web, Wikipedia, WordPress.com. Full details can be found in the Crossref Event Data User Guide.
How Does It Work? How Do You Enable? Future Plans? Read the Complete Blog Post
See Also: Search the PaperBuzz Database