Facebook's Mark Zuckerberg marries longtime girlfriend, Priscilla Chan

Video: Mark Zuckerberg changes his relationship status

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   >>> in the span of a few days, facebook founder mark zuckerberg turned it 28, took his company public, and then to cap it off, he got married. here's nbc's mike taibbi .

   >> reporter: mark zuckerberg didn't wear a hoodie for his wedding to longtime girlfriend priscilla chan , just a nice, dark suit. but the understated event at his palo alto home was still a typically unconventional surprise. one of the 100 or so invited guests said they all thought they were going to a party celebrating chan's graduation from medical school . said a neighbor --

   >> it definitely outside the box, which seems actually pretty characteristic. so that's good. you know. that's silicon valley .

   >> reporter: and in silicon valley and beyond the reaction was monumental. word spread that zuckerberg's relationship status had changed, just after 6:00 p.m . pacific time saturday. that within three hours after posting this photo on his own facebook page, over 400,000 friends liked the news. congrats, zuck, big day , big week, one wrote. another simple comment, wow. contrast that to the mere 485 likes following the opening of public trading for facebook last friday. and a lukewarm reaction from some wall street savants.

   >> is this the next google? or is this the next pets.com.

   >> reporter: still, facebook with its nearly 1 billion loyal worldwide users, came away from the opening with some $100 billion. if money is power, one question now is whether the young mogul and his bride will become one of the country's visible power couples. one celebrity watcher says not in the typical way.

   >> mark and priscilla have always been a very private couple, and they'll probably stay that way. they may end up more like a bill and melinda gates versus a brad and angelina.

   >> reporter: the two had met when both were harvard undergrads. when the precocious zuckerberg, as portrayed in the hit movie "the social network ."

   >> that's what the facebook is going to be about.

   >> reporter: was inventing the way he believed people would choose to connect in the digital age. in the days before taking his company public, he was saying the same thing.

   >> i think it ends up being a very clear picture of the important things that happened in a person's life.

   >> reporter: and what a story in the lives of these two people. the 27-year-old bride, whose 28-year-old groom is now the 29th richest person on the face of the earth. one fan wrote, prenup? i'm just sayin'. but this is a guy on a roll like no other. all smiles, and why not. for "today," mike taibbi , nbc news, los angeles .

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