MESUR: science maps and rankings from large-scale usage data
The MESUR project studies science from large-scale usage data collected from some of the world's most signficant publishers, aggregators and university consortia.
To produce a scatterplot of the top journals in a particular domain select a metric for the x-axis and y-axis below. The size of the points in the scatterplot can be varied according to another metric, i.e. the z-axis. Select the domain whose top journals you want displayed in the scatterplot, and hit submit!