The h index

From a Nature news I found this paper on the h index. J. E. Hirsch proposes that the scientific performance for a researcher could be measured by this index h that he defines as : "the number of papers with citation number higher or equal to h".
From the news: "n h-index of 50, for example, means someone has written 50 papers that have each had at least 50 citations."

Such a measure would take the journal out of the rating and stop the current "rich get richer" trend for the impact factor. This way the author will focus more on the audience of the journal.