PART 1: The tools that generate citation analysis: Google Scholar, Web of Science and Scopus
PART 2: The impact tools that utilize the metrics of citation analysis: Publish or Perish (PoP); Altmetrics.
PART 3: Predatory Publishing and Bogus Impact Factors
PART 4: Journal Verification Resources like ULRICH'S WEB
Google Scholar is a search engine that indexes a large variety of peer-reviewed literature, like Web of Science and Scopus; however, Google Scholar is more comprehensive because it includes:
If the article has been cited by others, a link reading “cited by” will be part of the Google Scholar record. Clicking on that link will take you to the list of articles that cited the scholarly item.
Google Scholar searching is generally easier and faster than either Web of Science or Scopus and the most efficient way to search Google Scholar is by using the software Publish or Perish.
Web of Science is a citation analysis database of peer-reviewed literature owned by ThomsonISI and is composed of the following indexes:
It is important to remember that when Web of Science counts citations, it is only counting citations from a set of roughly 7,500 primarily English-language journals indexed by ThomsonISI.
Scopus is a citation analysis database of peer-reviewed literature owned by Elsevier and covers the following disciplines:
When Scopus counts citations, it is only counting citations from articles indexed in the Scopus database.
It is important to remember that Scopus was only released in 2004 and citation tracking is only available for articles published between 1996 and the present.