According to Facebook, the Like and Share buttons appear on over 7.5 million websites and are seen 22 billion times per day. They are also important drivers for Facebook referral traffic. For the first time since their inception, the Like and Share buttons have a new design.
The new design utilizes the Facebook “F” icon, instead of the thumb. They will automatically updated across the web, meaning no additional work will be needed for website owners. But, a Like and Share combo button is available for embedding on websites.
Further details can be found in the links below: