Thomson Reuters has released its 2009 Journal Citation Report, cataloging journals impact factors’, and shuffling in the top few spots have some analysts scratching their heads. Specifically, the ...

Because small numbers of highly cited articles can have outsized influence on certain citation measures like the 2-year Journal Impact Factor (JIF) (see below for definition), Springer Nature ...

We are pleased to announce that three of our Open Access journals have received their first full set of impact metrics. The metrics include impact factor, article influence score and immediacy index ...