Just saw this at a bookstore. Flicked through it, looks great, doesn't seem like a fluff piece. Lots of mathematical symbols everywhere, transformation methods etc. Will buy lots of stuff like this when I'm rich.

Update Look what I found: Privacy Preserving Data Mining Bibliography, a categorized collection of papers. The table of contents provides you with a brief overview of the research field.

Judging from the title, the paper you (and I) will want to check out is State-of-the-art in Privacy Preserving Data Mining by V. S. Verykios, E. Bertino, I. N. Fovino, L. P. Provenza, Y. Saygin, Y. Theodoridis (2004).

Update2 del.icio.us tag: ppdm.