BioMed Central recently released the 2010 IAC unofficial IF of 2.33. An excellent result for a recently established journal.

For any journal to have an Impact Factor it must be tracked by Thomson Reuters (ISI) for three years. Although many BioMed Central journals are tracked by Thomson Reuters, others are still relatively new. For further information the Impact Factor Web Page of BioMed Central should be visited. The listed tables show those journals that are already tracked by Thomson Reuters (ISI) and so already have Impact Factors, and journals that are due Impact Factors for which their unofficial Impact Factors has been calculated. Note that in several cases the figures are artificially low, as they are based on a single year of citation data rather than the usual two.Thomson Reuters (ISI) is currently considering additional BioMed Central journals for tracking. If the journal you are interested in is not currently tracked, you can recommend it to Thomson Reuters (ISI) for tracking.

Two other citation tracking services (Scopus and Google Scholar) both track citations for all BioMed Central journals.

The SCImago Journal Rank(SJR) is also a free alternative journal citation-metric based on citation information from Scopus.

SJR is currently ranking the IAC journal in the second Quartile of all worldwide journals dealing with Epidemiology (occupying the position number 20) and Oncology (# 78) and in the first Quartile of those focused on Infectious Diseases (#23).

Moreover the IAC journal is now on Twitter at @IAC_journal.