What do we know about Altmetric.com sources? A study of the top 200 blogs and news sites mentioning scholarly outputs

This paper presents a preliminary study of the diversity and typology of users and uses around scholarly outputs in blogs and news sites as tracked by Altmetric.com. The top 100 blogs and top 100 news websites in terms of mentioning publications, for which their URLs are available, have been considered for a deeper analysis. The identified sources were manually analyzed on the respective websites and on the available Altmetric.com metadata and classified in order to understand how the scholarly outputs are mentioned.