Joe Green is most likely the Facebook roommate you've never heard of, but the Harvard graduate is trying to make a difference in the world, with friends. Green lacks the name recognition of company co-creator Mark Zuckerberg , or even Eduardo Saverin, who famously helped launch Facebook, although he was there with the Internet entrepreneurs in that dorm where the social media powerhouse was born. And he walked away from it.

Images from celebrations marking the end of Chinese new year

Cute primates slow lorises are in decline as they are being traded illegally as pets, but there are other endangered primates you may never have heard of that are also vanishing.

Decoding Mark Zuckerberg's letter to investors

Movie critic Mark Kermode hands out this year's Kermode Awards.