quantmod, TTR, and xts were (not so) recently featured on the Inference for R Blog. Inference for R is a Integrated Development Environment (IDE) designed specifically for R.
The post gives an example of how to easily perform advanced financial stock analysis using Inference in Excel.
I appreciate how they're making R more accessible to a general audience, even though I like a command line interface and my preferred development environment is vim. :-)
6 hours ago