This SPSS Tutorials project has wide coverage of topics on working in SPSS Statistics, from basics to advanced tips, including syntax and modeling. Tutorials are written in step-by-step style and fully illustrated. FAQ page and reference materials (best practices, glossaries, etc.) are available. This very nice looking web-site was created by Ruben Geert van den Berg from Amsterdam, the Netherlands.

Link added: Oct. 15, 2015