I think you share more private data then you realize. Now that everybody is embedding iframes with Like buttons Facebook can keep a record of all the sites you

I think you share more private data then you realize. Now that everybody is embedding iframes with Like buttons Facebook can keep a record of all the sites you visit. Are you ready to share this information with the world? What about the videos you watch? Sites like Pandora already know who you are when you arrive at their site, do you trust them as much as Facebook?