Here’s a nice catalog of graphs made with R, along with source code for each. Some of the images were broken or missing when I tried it, but hopefully they’ll get that fixed. (By they way, this is my personal experience with interactive “Shiny” apps so far – I love the idea and the look, but there always seems to be something wrong that needs to be fixed, and fixing it takes more time and requires more specialized training than just dealing with plain old code. At first, I thought it might be a productivity enhancer, but instead it’s a drag when your job is not to build cool-looking apps, but to produce useful data analysis results in a reasonable amount of time.)