Home » BBC News - Technology » technology news » Facebook's Mark Zuckerberg takes up challenge to tour US Facebook's Mark Zuckerberg takes up challenge to tour US Unknown 3:59 PM BBC News - Technology technology news Facebook's Mark Zuckerberg plans to spend 2017 touring the US - in his latest ambitious challenge. from BBC News - Technology http://ift.tt/2i7NvQO Share: Facebook Twitter Google+ StumbleUpon Digg Delicious LinkedIn Reddit Technorati