Warning: Undefined array key "visitor_referer_type" in /var/www/vhosts/wordinf.com/core/app/libraries/Core.php on line 98 Kara Swisher - Mark Zuckerberg needs no introduction...
Mark Zuckerberg needs no introduction these days, what with all the magazine covers and morning news shows. My mother knows who he is now, and my mother can hardly turn on a computer.