Combination example code for common things and tutorial.
"A "public suffix" is one under which Internet users can directly register names. Some examples of public suffixes are .com, .co.uk and pvt.k12.wy.us. The Public Suffix List is a list of all known public suffixes. "
Nice sort of R thesaurus for other statistical software.
Awesome tutorial with loads of examples, code samples, and graphs. Amazing resource.