I think this would be pretty easy to do with gpplot2, but Portfolio looks like its worth checking out too.
exciting project by fernanda viegas
Awesome write-up on the history of the Wikipedia logo by the author of the very very first version.
Cute way of creating web visualizations in R that don't work in my new NoScript-enabled browser.
Solving complex problems is a very complex problem.
Using Wikipedia to see which philosophers influenced which other philosophers.