Table 1

Comparison of 2005 journal impact factors for general science and biology journals.

Journal
Impact factor
Launch date

Nature
32.2
1869
Science
30.9
1880
Cell
29.4
1974
PNAS
14.5
1915
Journal of Biology*
20.1 (predicted)
2002
PLoS Biology*
13.9
2003
Genome Biology*
9.7
1999
BMC Biology*
4.4 (predicted)
2003

*Open access. The predicted impact factor is based on the number of times that research articles published in 2003 and 2004 were cited in 2005.

Journal of Biology 2007 6:5   doi:10.1186/jbiol57