Altmetric, ImpactStory, and Plum Analytics are some of the main aggregators of altmetric information and they provide a variety of services for researchers, publishers as well as institutions.
Publishers work with altmetric aggregators in order to provide altmetric data for scholarly articles. As a result, authors can check the impact of their online scholarly research by accessing their article in the journal and reviewing the aggregated altmetrics. Authors have another option - they can set up a personal account with Altmetric, ImpactStory or Plum Analytics to view the impact of their collective online published research. The altmetric information is updated regularly - often daily. Generally, altmetric data is displayed two ways for quick reference - visually (e.g Altmetric donut and Plum Analytics Plum Print) and in summary format.
Plum Analytics is owned by Elsevier (recent purchase). For more information see Altmetrics Trending Online.
Other Sources of Altmetrics
Create a free Google Scholar Citations profile to track article level metrics (e.g. number of times your article was cited on the web with the link to see which researchers are citing you, chart highlighting the number of times your articles were cited in a given year and the h-index). Note: If you do not have a Google account, you will be asked to create one.
The researcher has the option to keep their profile private or open it to the public.
Create a free Mendeley account. Mendeley is both a citation management program as well as a peer network for scholarly researchers.
To participate in the peer network create an individual profile.
Mendeley altmetric data - such as the number of times an article is added to the Mendeley library - is captured and shared with other altmetric data providers (e.g. Plum Analytics and PLOS ONE).
Mendely is owned by Elsevier.
Create a free ResearchGate account. ResearchGate is a peer network for scholarly researchers mainly in the disciplines of science and medicine.
A ResearchGate user profile includes a stats tab to track, for example, the number of times individual articles have been read and which researchers have read your article.