Latest Impact Factor figures from Elsevier's Library and Information Science Journals
We are pleased to bring you the latest Impact Factor figures from Elsevier's Library and Information Science journals. Highlights include...
 | International Journal of Information Management | |
| 2009 Impact Factor WAS 0.7232010 Impact Factor NOW 1.554 |  | |
 | Library & Information Science Research | |
| 2009 Impact Factor WAS 1.2362010 Impact Factor NOW 1.362 |  | |
 | Library Collections Acquisitions & Technical Services | |
| 2009 Impact Factor WAS 0.4292010 Impact Factor NOW 0.529 |  | |
| Journal title | 2010 Impact Factor |
|---|---|
| Journal of Informetrics | 3.119 |
| Government Information Quarterly | 1.878 |
| Information Processing & Management | 1.673 |
| Journal of Academic Librarianship | 0.870 |
| Serials Review | 0.707 |
Calculating Impact Factors
WHAT IS AN IMPACT FACTOR?
The journal impact factor is a measure of the frequency with which the average article in a journal has been cited in a particular year. The impact factor helps you evaluate a journal's relative importance, especially when you compare it to others in the same field. The impact factor is calculated by dividing the number of citations in the current year to items published in the two previous years by the total number of items published in the two previous years.
| Cites in 2010 to items published in: | 2009 2008 Sum |
= 258 = 199 = 457 |
| Number of items published in: | 2009 2008 Sum |
= 116 = 71 = 187 |
| Calculation: | Cites to recent items | 457 | = 2.444 |
| Number of recent items | 187 |
The 2010 Impact Factor for Journal X is 2.444
Journal Performance Measurements
Journal performance measurements offer a systematic, objective means to critically evaluate journals, and several indicators are available.
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