Search Anonymously _ from Lifehacker.com

Starting Page Makes Your Google Searches Completely Anonymous Adam Dachis — Google's a great search engine, but search privacy has long been a concern for some. If you want to search privately without leaving Google, Start Page is a simple webapp that can act as a proxy for your searches. Startingpage

Starting Page operates just like any search: you enter terms, press search, and get results. In this case, however, you're still searching Google but Starting Page goes out and performs the search for you. This way Starting Page is tracked for performing the search and you're not, keeping your search private.

There is also Startpage does the same thing