GoogleSharing

GoogleSharing is an addon that routes all of your Google searches through a special proxy, so that Google doesn't know who searched what. It uses SSL encryption, so the proxy will not know what you searched either. It also injects plausible searches to Google, so Google thinks that it's a real person.

European GoogleSharing (http://gs.netsend.nl/) is an alternative proxy for users in Europe & is hosted in Amsterdam

The proxy source code is available for free use at the project site.