“While Google’s market share has not seen a noticeable dent, privacy search engines like US-based DuckDuckGo and European-based Ixquick have seen jumps in traffic from users seeking to limit their online tracks. The stored data has become a concern following revelations of a massive surveillance program run by the secretive National Security Agency, with access to data from Google, Yahoo! and other Internet firms. US officials say the information gathered is vital in the fight against global terrorism. The same data and profiles can be used by the search engine to deliver ads and sold to outside marketers as well.”
