S

The Basics of S-Plus
Author's page with errata, prior editions, S links.
http://www.elmo.ch/doc/splus-book/

Burns Statistics
Software, consulting, training, mainly for the fund management industry; working papers, tutorials, downloads, other information on quantitative finance and programming in S language (R and S-Plus).
http://www.burns-stat.com/

Modern Applied Statistics with S
By William N. Venables, B.D. Ripley; Springer-Verlag, 2002, ISBN 0387954570. Guide to using S-Plus and R for statistical analyses: introduces using S, and is a course in modern statistical methods.
http://www.stats.ox.ac.uk/pub/MASS4/

Omega Project for Statistical Computing
Joint project to provide variety of open source software for 3 extant statistical languages: S, R, Lisp-Stat. Focus: new directions, more so web-based systems, Java and JVM, and distributed systems.
http://www.omegahat.org/

Programming with Data: A Guide to the S Language
By John M. Chambers; Springer-Verlag, 1998, ISBN 0387985034. Premier reference work on S, written by its chief designer, describes new, greatly extended version.
http://www.springer.com/uk/home/generic/search/results?SGWID=3-40109-22-2008951-0

S Programming
By William N. Venables, B.D. Ripley; Springer-Verlag, 2000, ISBN 0387989668. In-depth guide for researchers, graduate students, to writing software in either or both S variants: S-Plus, open source R.
http://www.springer.com/uk/home/generic/search/results?SGWID=3-40109-22-2104231-0

S Programming
Author's page with errata, description, contact information.
http://www.stats.ox.ac.uk/pub/MASS3/Sprog/

S-News and S-News-Advisory Mailing Lists
Discussion group on S, S-Plus statistics, graphics, programming. Topics: programming, usage questions and suggestions; problem reports; new software announcements; books, articles; conferences, educational events; short job announcements.
http://www.biostat.wustl.edu/s-news/

ACM: Software System Award
Press release from The Association for Computing Machinery naming Dr. John M. Chambers of Bell Labs as recipient of 1998 award for developing the S System. <small>(March 23, 1999)</small>
http://www.acm.org/announcements/ss99.html