New Media Tutorials: Blogs, Videos, and Podcasts
R Revolutions blog: get R updates and lots of R tips.
R Statistics blog: for more advanced users of R
Stat Methods blog: a resource for tips and R trainings around the country.
One R tip a Day: Follow this twitter feed!
R Graph of the Week blog
R + Applied Econometrics Blog: This blog, authored by applied econ grad student Kevin Goulding, is an excellent resource. It is a very clear overview of how to implement standard methods (e.g. hypothesis testing, fixed effects) and make nice graphs.
R-Bloggers: R news and tutorials from several hundred R bloggers.
Ports from Other Statistical Packages
Excel to R: Resources on converting to R from Excel
Matlab, Python and R: Basic commands in all three languages
R for SPSS and SAS Users: An intro to R seen through the lens of SPSS and SAS users.
Rcpp Intro: Helpful slides on integrating R and C++ using Rcpp
Additional Coding Tricks
Simulation: How to simulate in R and Stata.