Ixquick (http://ixquick.com) is another decent option.
I find its results are a bit weaker than Duckduckgo's, but it's worth a shot.
I usually jump between these two when I'm looking for something, and so far they stand up to the job.
- Review Reg man looks through a Glass, darkly: Google's toy ploy or killer tech specs?
- MEN WANTED to satisfy town full of yearning BRAZILIAN HOTNESS
- +Comment 'Stop dissing Google or quit': OK, I quit, says Code Club co-founder
- Nokia: Read our Maps, Samsung – we're HERE for the Gear
- Apple tried to get a ban on Galaxy, judge said: NO, NO, NO