On Wednesday,Mark Zuckerberg, the twenty-six year old chief executive of Facebook, announced changes.

VOA: special.2010.05.28

What do you think of Mark Zuckerberg, the co-founder of Facebook?

你觉得社交网络的共同创始人马克•扎克伯格怎么样？

适合创业的旧金山 - SpeakingMax英语口语达人

Mark Zuckerberg and three friends started Facebook in two thousand four.

VOA: special.2011.01.14

What grew as the pet project of Mark Zuckerberg, when he was a student at Harvard,has exploded - gaining eight new users ever second for the past 15 months.

VOA: standard.2010.07.23