Last year in my post d3 <- R with rCharts and slidify I predicted:
I have a feeling that nearly every R user of lattice or ggplot2 will be familiar with Ramnath’s brilliance by the end of the year 2013. He might even convince some d3 users to try a little R.
Now Ramnath has started a blog at http://ramnathv.github.io/blog/ with some (not surprisingly) really high quality posts. I strongly encourage everyone (regardless of favorite language) to check it out.