Article factor metrics inform how often an article was viewed, discussed in social media (e.g. science blogs, Twitter, Facebook), saved (e.g. Mendeley, social bookmarking services), cited (e.g. Web of Science, Scopus, CrossRef) or recommended (e.g. F1000Prime).
Depending on the publisher, this information is made available in the journal in which the article appeared.
Dimensions is a platform containing information to grants, publications, citations, alternative metrics, clinical trials, patents and policy documents to deliver a platform for users to find and access the most relevant information and analyze the academic and broader outcomes of research. More than this it provides a quick overview of altmetric data for articles.
Google Scholar includes journal and conference papers, theses and dissertations, academic books, pre-prints, abstracts, technical reports and other scholarly literature from all broad areas of research. You'll find works from a wide variety of academic publishers, professional societies and university repositories, as well as scholarly articles available anywhere across the web. Google Scholar also includes court opinions and patents.
One of the largest citation databases. Provides on the article level how often the article is cited (Citations) and how many references are cited (References) in the current article.