Linux Mint 12, just released, has been delivered with an independent search option: DuckDuckGo. It's Mint's default search engine under a partnership with the makers of the distro, also just announced.
DuckDuckGo is a three-year-old search project with venture backing that promises to torpedo the business model Google and Microsoft's Bing are predicated on: making money from your search data by selling it to others.
According to the DuckDuckGo site, here:
Unlike all major search engines, DuckDuckGo does not collect or share personal information. There is no search history, personal profile or any other information about you gathered, stored, sold, used or leaked.