Facebook added Skype video calling on Wednesday for the hundreds of millions of users of the social network. Facebook co-founder Mark Zuckerberg unveiled the new video calling feature during an event at Facebook headquarters in Palo Alto. \"We think this is awesome because we\'re using the best technology that\'s out there for doing video chat with the best social infrastructure that\'s out there,\" Zuckerberg said. Facebook also introduced a group chat feature on Wednesday which allows for a multi-person conversation. Zuckerberg also announced that Facebook now has more than 750 million users.