This should not come as a surprise because social networking was really the biggest thing in 2010. As TIME has appropriately described it, Facebook now connects 550 million, or about 1/12th of the world's population. If it were a country, TIME noted, Facebook would be the third biggest, after China and India.
As to the Internet, there is now some discussion on where technology is heading. Is it going the Facebook way, or the Google way, or both? Will both continue to grow in the near future? Hard to say at this time.
How much does he earn? Remember that in 2008 Zuckerberg landed at no. 321 in Forbes 400, a list of the richest people in America with a personal wealth of $1.5 billion, and thus became the youngest person ever included in Forbes 400.
By 2009, Zuckerberg was reported to be worth $3 billion. This year 2010, Forbes estimates his net worth at $6.9 billion, making him the 35th riches in America, even ahead of Steve Jobs of Apple and Eric Schmidt of Google.