- An Introduction to R gives an introduction to the language and how to use R for statistical analysis and graphics.
- Another introduction to R by Vincent Zoonekynd.
- Quick-R web site related to
*R in Action*book. - R For Beginners.
- TryR at Codeschool.
- swirl: Lean R in R.

- Jonathan Baron’s R help page
- R Installation and Administration provides information on installing add-on packages and installing R itself.
- Writing R Extensions explains how to create your own packages, write R help files, and the foreign language (C, C++, Fortran, …) interfaces.
- R Data Import/Export describes the import and export facilities available either in R itself or via packages which are available from CRAN.
- CRAN, the Comprehensive R Archive Network.
- The R Inferno
- R Task Views
- Contributed Documentation