Health Research Policy and Systems, International Journal of Mental Health Systems and Population Health Metrics have recently been accepted by Thomson Reuters for impact factor tracking and are all due to receive their first impact factors in June 2013.

We would like to congratulate the Editors-in-Chief of these journals on this achievement and look forward to receiving the official impact factors for these titles in due course.

Full details on indexing of all BioMed Central journals are available on our website.