Scopus Useful for locating citing references and for performing analyses by author or paper. Calculates h-index.
Google Scholar Besides searching citations based on a topic or a person, users can click "cited by" underneath each citation to find publications that have cited that paper. Google Scholar is particularly useful for locating publications that are conference proceedings, pre-prints or technical reports.
Web of Science (Science or Social Science Citation Index) Can be used to demonstrate the impact of particular articles and authors through the "Cited Reference Search" and also allows subject searching through both "quick" and "advanced" searches. (use at Rutgers DANA library)
Harzing- Publish or Perish Instead of using Web of Science, Publish or Perish uses Google Scholar data to calculate its various statistics. Users must download and install the software from http://www.harzing.com/pop.htm#download
Scholar H-index Calculator The h-index is an index that attempts to measure the scientificresearch impact and the productivity of the published work of a scientist or scholar. This Firefox addon will automatically display some of the most known citation indices (h-index, g-index, e-index) for any author (or any arbitrary query regarding journals, keywords, etc.), on top of Google Scholar or CiteSeer.