SPSS

The How To Guides
Screenshots and step-by-step instruction on choosing and performing analyses in SPSS and Minitab.
http://www.statsguides.bham.ac.uk/

Listserv Logs for SPSSX-L Mailing List
Archives of all posts to the SPSSX-L mailing list since May 1987
http://www.marist.edu/htbin/wlvindex?SPSSX-L

Medical Statistics Using SPSS
This is an on-line course on medical statistics. You may download the databases needed to follow step by step the examples in the text.
http://www.shef.ac.uk/~scharr/spss/

PSPP
Savannah page with mailing lists, CVS repository, bugs track list, task manager.
http://savannah.gnu.org/projects/pspp/

PSPP
A free alternative to SPSS. Performs descriptive statistics, T-tests, linear regression and non-parametric tests. Includes graphical interface similar to SPSS and a command line interface. [Open Source, GPL]
http://www.gnu.org/software/pspp/

Raynald's SPSS Tools
Archive of 350+ sample SPSS syntax, scripts and macros classified by purposes, as well as FAQ, Tips, Tutorials and a Newbie's Corner.
http://www.spsstools.net/

Rotation PRINCALS Solutions
Annotated example of how a solution of a non-linear principal components analysis (PRINCALS) can be rotated, using SPSS.
http://oase.uci.ru.nl/~rkonig/rotation_princals/

SPSS On-Line Training Workshop
Includes about 40 Quick Time Movies describing many aspects of SPSS.
http://calcnet.mth.cmich.edu/org/spss/

SPSS Scripts
Information on downloadable SPSS scripts, SPSS OLE objects, Sax Basic language.
http://web.tiscali.it/fabriweb/spss-scripts/

Statistical Services FAQs
Includes about 50 Frequently Asked Questions on SPSS. Including some on converting data from / to SAS
http://www.utexas.edu/cc/faqs/stat/index.html#SPSS

UCLA Resources on SPSS
Contains Textbook examples, Library, Code Fragments, FAQ, streaming video presentations on SPSS
http://www.ats.ucla.edu/stat/spss/