Our policy is very simple: we don't record any information about people using this site other than their IP addresses and pages seen (as stored in regular server logs). We also receive aggregate information on sales from some of our affiliates (i.e. lists of what people bought when, but with no personal identifying information). We do not, and will not, share any such information with any third party, unless in the highly remote chance of receiving a court order to do so.
-Gerard.