Facebook has introduced a new Like Button together with some other “social plugins” at their f8 conference last week. Everybody can put it on their website so that visitors can “like” a page and add it to their Facebook profile without leaving the site.
This button actually allows Facebook to track all visitors of the external site, no matter if they click it or not (as long as they are Facebook users – but who isn’t?). Continue reading How Facebook’s Like Button Works