With nearly 5 million "likes" on Facebook, a book out about him and a 2013 calendar to boot, Boo is one popular pup, legitimately dubbed "the world's cutest dog," whose sweet eyes and face — in ...

Boo, the 12-year-old Internet sensation with millions of fans, has died. On Friday, the Pomeranian's owner announced the death on Facebook, writing, "With deepest sadness I wanted to share that ...

According to Isaac, Boo belongs to Irene Ahn, a finance lead at Facebook. She joined the company in 2008 from Yahoo. Ahn's identity as Boo's "mom" has never been revealed before.