Facebook is bringing its "like" functionality to Open Graph that'll enable developers to add the action to their applications. Press the heart-shaped button and it'll trigger an alert on the site, voicing your approval for your friend's most awesome Instagram snap, amongst other things. As with the desktop version, likes will be collated in your news feed, but only once you've authorized the third-party app to access it.
Facebook adding 'Like' to Open Graph, will connect the internet in approval
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