Google Scholar provides a simple way to broadly search for scholarly literature.
Type of Impact Measured: Article
Metric Included: Times cited
Google Scholar Metrics provide an easy way for authors to quickly gauge the visibility and influence of recent articles in scholarly publications. Scholar Metrics summarize recent citations to many publications, to help authors as they consider where to publish their new research.
Type of Impact Measured: Journal
Metrics Included: h5-index, h5-median
Google Scholar Citations provide a simple way for authors to keep track of citations to their articles. You can check who is citing your publications, graph citations over time, and compute several citation metrics. You can also make your profile public, so that it may appear in Google Scholar results when people search for your name, e.g., richard feynman. Free registration.
Type of Impact Measured: Author
Metrics Included: times cited, h-index, i10-index