The Guardian website (British national newspaper) ran an article yesterday about how to move away from Google due to their tax-avoidance tactics in the UK. Their first recommendation for alternatives to Google Search was DDG!
"What are the alternatives? Once you start trying them, my experience is that search is actually more of a commodity than you might think.
DuckDuckGo.com offers (in my experience) search results that are just as good as Google's, and often less full of spam. I've personally used it as my principal search engine for more than a year, initially as an experiment and then simply because it was effective. It's ethical - it's too small a company yet to have gone for any tax avoidance methods that I'm aware of - and doesn't try to track you online."