article_snippet: Bill Gates, pictured last week, was once again named the world's richest person with a wealth of $79.2 billion .
article_snippet: That put Bill & Melinda Gates at the top of the magazine's list of the world's billionaires for the second consecutive year.
article_snippet: Bill Gates's has topped the list for 16 of the last 21 years.
article_snippet: It's the 29th year for Forbes billionaires' list.
article_snippet: Facebook's Mark Zuckerberg first time in the world's 20 richest people.
article_snippet: Jack Ma, whose Alibaba online marketplace made the biggest global IPO ever last year, was ranked among the world's 50 richest people, along with two other Chinese nationals.
highlights_snippet: The co-founder of Microsoft has topped the list for 16 of the last 21 years .
  