The Internet is massive. It’s simultaneously a never-ending shopping mall, the biggest library that you’ve ever seen, and movie theater. According to a study conducted by MIT, the average American now spends a full day of their week (24 hours) online...and that’s just an average. We all know people who are locked into the Internet from the moment they wake up and stay locked in until they go to sleep. Surprisingly, people only spend their time on a handful of the over 644 million websites that populate the Internet. Today we will take a look at the four most visited sites on the Internet and examine why users spend so much time visiting them.