Big Data - gizotso/R GitHub Wiki

pbdr : Programming with Big Data in R (pbdR)[1] is a series of R packages and an environment for statistical computing with Big Data by using high-performance statistical computation.

RevolutionAnalytics/RHadoop : Collection of packages for connecting R to Hadoop and running R on Hadoop nodes

http://www.rdatamining.com/big-data/r-hadoop-setup-guide

http://projects.revolutionanalytics.com/

ParallelR: http://www.parallelr.com/ : Collection of R packages for parallel and distributed programming