NatureJobs reports on the contentious topic of possible gender bias in peer review (Nature 459, 602; 2009). Peer review assesses what is of value in science, yet it has been criticized for biases. One such perceived bias is gender, although evidence for such a bias has been contradictory. A 2007 meta-analysis (L. Bornmann et al. J. Informet. 1, 226–238; 2007; reported at the time in NatureJobs Nature 445, 566; 2007) concluded that women are at a disadvantage in peer review of funding applications. As this study incorporated all known research on this issue, it was suggested to be definitive.