Did you ever hear about Impact factor? Journal Impact Factor (IF) is from Journal Citation Report (JCR), a product of Thomson ISI (Institute for Scientific Information). JCR provides quantitative tools for evaluating journals.
The impact factor for a journal is calculated based on a three-year period, and can be considered to be the average number of times published papers are cited up to two years after publication. For example, the impact factor 2010 for a journal would be calculated as follows: A = the number of times articles published in 2008-9 were cited in indexed journals during 2010. B = the number of articles, reviews, proceedings or notes published in 2008-2009
impact factor 2010 = A/B.
According to Science Watch, this is the TOP Ten Most-Cited Journals (All Fields), 1999-2009. Check this link here to view the top ranked journals.
For further reading:
www.sciencegateway.org
www.thomsonreuters.com
www.bioreference.net
www.abhayjere.com
www.en.wikipedia.org
Filed under: Journals, Reference, Impact factors, Journal rankings
