Incognito is a Safari extension that prevents Google, Twitter and Facebook from following you on the web.
It's a jungle out there
When browsing the web, you are continuously being tracked. Not only by the websites you are visiting, but also by major companies that embed their 'content' into other websites through ads and analytics. As a result, companies like Google, Twitter and Facebook have an almost complete picture of your online activity.
Your online counterspy
Incognito protects your privacy by blocking Google Adsense and Google Analytics on non-Google pages. In addition, it allows you to optionally block Facebook and Twitter content on third-party websites as well as embedded YouTube movies outside of the YouTube website.
Although effectively blocking Google Adwords, Incognito is no dedicated ad-blocker. It simply prevents companies from gathering information outside of their own website.