Meet Boo the dog - a superstar among canines whose internet ... Recognising his potential as one of the cutest dogs ever seen, his owner opened up a Facebook page for the Pomeranian in 2009.

Boo, the world's cutest dog, has died of a "broken heart", his owners have confirmed. His death was confirmed in a post on Saturday made by his American owners to his 16 million Facebook followers.

posted adorable snaps of the dog on his own Facebook page. A book deal soon followed, and the fact that Boo: The Life Of The World's Cutest Dog is currently out of stock on Amazon further suggests ...