Eigenfactor anaylzes journals and articles by looking at patterns networks of citations over time. This resource ranks journals and shows their influence in particular subject areas as well as showing visualizations of various data points. Data comes from Thomson Scientific's Journal Citation Reports.
Google Scholar scans the citation information for scholarly articles and links out to other articles that cite a particular article.
Journal Citation Reports gives journal rankings, impact factors, and other metrics to evaluate a journal title.
From the University of Lund (Sweden), this accessible resources gives information about over 18,000 journals, including the Article Influence, FRIDA Level (Norway), and a direct link to the ISI impact factor.
From a consulting firm, this site provides "the only online interactive journal ranking service" using data including citations, influence, and impact factors.
Free software that allows a user to enter a citation, author, or journal name and obtains a variety of metrics using data from Google Scholar. Metrics used include the h-index, g-index, and e-index.
From a research group, this interactive site uses data from Scopus to provide journal citation information. Additional features include tools to judge research by nation, including rankings and concept maps to type of research.
Scopus identifies scientific articles in over 14,000 peer-reviewed journals from more than 4,000
international publishers. Selecting "References" in the search options will bring up a list of
articles that cited the search terms. Also has options to see what other articles cited a
particular articles and citation patterns over time.
Identifies articles in science, social science, and arts and humanities, and the articles that cite them. Database allows searches for items that have cited another item as well as visual mapping citations. Journal Citation Reports (under additional resources tab) gives journal rankings, impact factors, and other metrics.
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Last modified by: Jennifer Emanuel on 10/22/09