BioMed Central journals rated highly in latest SCImago journal rankings

"The 2009 journal rankings were recently published by SCImago, and established BioMed Central journals continue to rank highly in their fields. In addition, a number of recently launched BioMed Central journals appear in the rankings for the first time. The SCImago Journal Rank (SJR) is a measure of a journal’s impact, influence or prestige with citation data from Scopus. Unlike the Thomson Reuters impact factor, the SJR weights citations depending on how highly cited the journal is the journal in which the citing article appears, using a variation of the Google PageRank algorithm. The SJR for a given year is based on documents published in the selected journal in the previous three years...."