Manuals(http://cran.r-project.org/manuals.html)
Rcourse(http://faculty.washington.edu/tlumley/Rcourse/)
Other resources(http://cran.r-project.org/other-docs.html)
frequently asked questions(http://cran.r-project.org/doc/FAQ/R-FAQ.html) before you send an email.
wiki page(http://wiki.r-project.org/rwiki/doku.php) is available
The R Commander: A Basic-Statistics GUI for R(http://socserv.mcmaster.ca/jfox/Misc/Rcmdr/)
introductory manual (520.32 KB)
매뉴얼 사이트, 한글(http://remantu.com/r)
통계 R User 포럼(http://club.cyworld.com/club/main/club_main.asp?club_id=50773074#) 싸이월드
Core Illustration(http://www.math.ilstu.edu/dhkim/Rstuff/Rtutor.html)
Statistics with R(http://zoonek2.free.fr/UNIX/48_R/all.html) - great examples!!!
R Tutorial(http://www.cyclismo.org/tutorial/R/index.html)
Introduction to R(http://cran.r-project.org/doc/manuals/R-intro.html)