Something else which might be of interest: PrivacyFinder.org as discussed here
PrivacyFinder seems to be making productive use of P3P, an old privacy standard that has, in many other respects, fallen short of expectations. If you run a search on the site, you can quickly see when one result matches your standards and others don't.
Privacyfinder's logging policy is amongst the best in the industry (Ixquick is also first-rate). Privacyfinder only keeps search records for a week, unless the user explicitly opts in to being tracked. Because the CMU Laboratory wants to do research on the use of search engines, it's offering prizes for people who are willing to be tracked for research purposes. That's the way we like to see it done.