Good resources for learning R as a Psychologist are hard to find. By that, I mean that there are so many great sites and blogs to learn R. Thus, it may be hard to find learning resources that target Psychology researchers.
Outline
The structure of this post is as follows. First, we start by getting a quick answer to the question “what is R?”. After this, we will briefly discuss good books you can use to learn R. In the next section, we will go into two other types of R resources: namely, tutorials and how-tos. This section will start by giving you some general resources and then list some R tutorials (many from this blog), and then, finally, you will get some Psychology specific R resources to learn from.
If you are new to R, you might wonder what R is. R is a free and open-source programming language and environment. Data analysis in R is carried out by writing scripts and functions. Finally, R is a complete, interactive, and object-oriented language.

R Books for Psychologists
Recently I wrote about four good R books targeted at Psychology students and researchers (i.e., R books for Psychologists). There are, however, of course, other good resources for Psychological researchers to learn R programming.
Therefore, this post will list some of the best blogs and sites to learn R. The post will be divided into two categories; general and Psychology focused R sites and blogs. For those who are not familiar with R, I will start with a brief introduction on what R is (if you know R already; click here to skip to the links).