London Telegraph 
April 19, 2010
Facebook is denying claims that its new content-sharing button will allow it to serve advertising based on its users’ web history.
The social network is launching a new content sharing button this week, which other websites can embed onto their pages, but it will not be used by Facebook  as a behavioural advertising targeting tool, as suggested in a report  (limited access to non-subscribers) originally printed by The Financial Times.
A Facebook spokesman said: “The Financial Times incorrectly suggested that Facebook is launching a behavioural ad targeting at f8, our upcoming developer conference. Their story has been corrected. As we have said previously, we are moving from ‘Become a Fan’ to ‘Like’ to make the language on the site more consistent but we have no announcements or changes planned to our ad offering or ad policies.”
The new ‘like’ button has been likened to tools sites like Twitter have developed to enable users to share content they like from around the web – with the rest of their social network.