not2easy - 8:13 pm on Jun 24, 2013 (gmt 0)
Ixquick and startpage are the same company, they do not run any bots, they "digest" other search engines' results including Google's. Duckduckgo uses Yandex results though they crawl too. Startpage is the US version. Ixquick has the more useful results IMHO - they offer ways to use Google features without using Google.