Here's Why Marketers Are Flocking to Mobile World Congress in Spain

It's not just about beautiful Barcelona

Around 93,000 tech, marketing and other digital industry professionals are in Barcelona this week for the 28th annual Mobile World Congress. It's not as ridiculously big as the Consumer Electronics Show in Las Vegas, which saw 170,000 attendees, but it's about twice the size of South By Southwest Interactive held yearly in Austin, Texas.