Orbicule has introduced Incognito (http://www.orbicule.com/incognito/), their free Safari extension that helps ensure greater privacy by preventing Google and Facebook from tracking the user’s movements and actions while online. It requires Safari 5 or later on Mac or Windows systems.
Incognito protects the user by blocking Google AdSense and Google Analytics on non-Google pages. In addition, it provides the option of blocking Facebook content and embedded YouTube Movies on non-Facebook and non-YouTube pages.
Although effectively blocking Google Adwords, Incognito is not a dedicated ad-blocker. It simply prevents the aforementioned companies from gathering information about the user from websites other than the company’s own.