The newly released 2009 edition of Thomson Reuters’ Journal Citation Report
includes official Impact Factors for 77 BioMed Central journals, 54 of which
are new or improved.

Some highlights:

• Genome Biology (IF 6.63)
  increased its Impact Factor and remains BioMed Central’s most highly cited
  journal.
• BMC Biology
  (IF 5.64) is now ranked #4 of 73 in the BIOLOGY category.
• BMC Medicine
  (IF 3.99) climbs to #18 of 132 in MEDICINE, GENERAL &
  INTERNAL. 
• Five more medical journals in the BMC series received their first Impact
  Factors:
  • BMC Family Practice
    (IF 1.71)
  • BMC Medical
    Genomics (IF 2.66)
  • BMC
    Medical Informatics and Decision Making (IF 1.90)
  • BMC Medical
    Research Methodology (IF 2.3)
  • BMC Psychiatry
    (IF 1.83)
• BMC Plant Biology
  (IF 3.77) remains in the top 10% of the PLANT SCIENCES
  category, while Plant Methods
  (IF 2.98) joins the category in the top 15%.
• Biotechnology for
  Biofuels (IF 4.12) received an impressive first Impact Factor.
• Breast Cancer Research
  (IF 5.33) has overtaken its closed-access rival to become the highest ranked
  breast cancer journal.
• Malaria Journal increased
  its Impact Factor to 3.00, maintaining its position at #2 in the TROPICAL
  MEDICINE category.
• Orphanet Journal of Rare Diseases
  (IF 5.84) experienced a significant gain, taking it to #7 of 92 in the
  MEDICINE, RESEARCH & EXPERIMENTAL category.
• Parasites & Vectors
  (IF 2.05) made its debut in the JCR, ranked #11 of 28 in the PARASITOLOGY
  category.
• Acta Veterinaria Scandinavica
  (IF 1.00) saw an increased Impact Factor for the 3rd successive year.
• Journal of Neuroinflammation
  (IF 4.68) and Molecular
  Neurodegeneration (IF 5.09) both appeared in the top 20% of titles in
  the NEUROSCIENCES category.