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Facebook
Facebook starts in 2004 -
MySpace
Myspace was booming even after facebook was initially started. I believe that most people think that once FB was started myspace just died, but it took time before facebook took over the spot myspace once had. -
Instagram
Instagram was born and took time to become known to everyone. I didn't know about Instagram till 2013 -
Snap Chat
Popular photo taking sharing app -
Tik Tock
quick filming of dancing for others to follow.