Being a 19 year old college student with many friends in high school, I can say snapchat is the most popular social network, followed by Instagram then Twitter,

Being a 19 year old college student with many friends in high school, I can say snapchat is the most popular social network, followed by Instagram then Twitter, and lastly Facebook. If something is happening, people will snap and tweet about it, Instagram and Facebook are reserved for bigger events that are worth mentioning, snapchat and Twitter are for more day to day activities and therefore get used much more often.