StatLib, a system for distributing statistical software, datasets, and information. started in 1989. hosted by the Department of Statistics at Carnegie Mellon University.
R is a language and environment for statistical computing and graphics. It is a GNU project which is similar to the S language and environment which was developed at Bell Laboratories by John Chambers and colleagues. R can be considered as a different implementation of S.
A variety of tools for working with datasets. data visualization, mapping, blogs, data catalogs, R tutorial, web crawlers, data mashers, code, lists of projects, APIs, etc.