Wiley-Blackwell, the STM and scholarly publishing business of John Wiley & Sons, Inc., US, has announced that 338 of its journals are ranked in the top 10 of their subject categories in the Thomson Reuters 2008 Journal Citation Reports (JCR).
Impact factors are a method of measuring the influence which a journal has on the scientific community. They are calculated by Thomson Reuters and are designed to indicate how many times the published articles of a journal are cited during the course of a year, providing an insight to how much 'impact' the journal is making on its audiences.
Forty two out of Wiley-Blackwell's 49 Engineering journals saw increased Impact Factors, with many proving to be leaders in their subject areas. Six journals increased their Impact Factor by more than 100 percent and a further 12 saw a rise of over 50 percent. Wiley-Blackwell medical journals received an Impact Factor in 2008 with an average of 3.03 (up 19.2 percent from 2.54 in 2007) and 35 journals increased their score by 0.5 or more.
A total of 949 Wiley-Blackwell journals are ranked in the JCR, up from 926 in 2007. 30 Wiley-Blackwell journals (excluding takeovers) were added to JCR 2008 for the first time. Looking at the share of the 2008 JCR, Wiley-Blackwell published the most journals in 51 of the 227 subject categories and the most articles in 41 categories. Wiley-Blackwell journals also received the highest total Impact Factors of any publisher in 37 subject categories. Around half of Wiley-Blackwell's journals are published on behalf of scholarly and professional societies.
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