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.
- One HUNDRED FAMOUS LADIES exposed NUDE online
- Google flushes out users of old browsers by serving up CLUNKY, AGED version of search
- China: You, Microsoft. Office-Windows 'compatibility'. You have 20 days to explain
- GCHQ protesters stick it to British spooks ... by drinking urine
- Twitter: La la la, we have not heard of any NUDE JLaw, Upton SELFIES