Do you use any search engines outside of the top 3?

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With Google, Yahoo and Bing all having different techniques to give you the best results for your search topic. There is still lots of other quality search engines out there. I personally use SB search along with Mylot to gain some extra money now and then. I will use omgili to find new forums in different niches. Along with searching Twitter to check on things like giveaways and contest finding. Wondering what ones people use?