The New York Times has an interesting article: http://www.nytimes.com/
2006/01/28/technology/28online.ready.html?_r=1&th&emc=th , which if
you want to read, you must register (or already be registered, which
I am - I am only mildly paranoid about privacy).
It gives a couple of links with suggestions on how to limit our
vulnarability, one to Wired, and one to search engine watch, that I
could not find.
Director (Computer Sig)
Alberta Family Histories Society