They know who your friends are, where you live, where you work, and where you spend your free time. They know about your health, your love life, and your political leanings. These days they are even branching out into collecting your realtime GPS location and your DNS lookups. In short, not only do they know a lot about what you’re doing, they also have significant insight into what you’re thinking.

GoogleSharing is a special kind of anonymizing proxy service, designed for a very specific threat. It ultimately aims to provide a level of anonymity that will prevent google from tracking your searches, movements, and what websites you visit. GoogleSharing is not a full proxy service designed to anonymize all your traffic, but rather something designed exclusively for your communication with Google.

GoogleSharing is a system that mixes the requests of many different users together, such that Google is not capable of telling what is coming from whom. GoogleSharing aims to do a few very specific things:

1. Provide a system that will prevent Google from collecting information about you from services which don’t require a login.
2. Make this system completely transparent to the user. No special websites, no change to your work flow.
3. Leave your non-Google traffic completely untouched, unredirected, and unaffected.

The GoogleSharing system consists of a custom proxy and a Firefox Addon. The proxy works by generating a pool of GoogleSharing “identities,” each of which contains a cookie issued by Google and an arbitrary User-Agent for one of several popular browsers. The Firefox Addon watches for requests to Google services from your browser, and when enabled will transparently redirect all of them (except for things like Gmail) to a GoogleSharing proxy. There your request is stripped of all identifying information and replaced with the information from a GoogleSharing identity.

Googlesharing is hardly the only tool that can flummox Google’s behavioral tracking system. The proxy system Tor, for instance, provides anonymity for any sort of Web browsing by siphoning a user’s data requests through not one but three servers.

Click here to download Firefox Addon for GoogleSharing proxy.