A screen displays a Twitter and share price logo as it starts trading at the New York Stock Exchange (NYSE) on November 7, 2013 in New York. - 

Twitter's stock closed yesterday at a level that's almost triple its IPO price. Twitter's IPO was one of the biggest tech events of the year, and tt's been a very hot 12 months for tech all around. Marketplace Tech host Ben Johnson previews what's on deck for tech in 2014, including the idea that your TV and washing machine might be networked to one another -- a concept called "the internet of things." 

Follow Ben Johnson at @@TheBrockJohnson