We know that, No 1 social media site is Facebook. Its majority in our daily life. All kind of people use this sicial site. but According tto the pew research centre, 68% off Americans use Facebook and three-quaters of those access the social media.
"Younger Americans (especially those ages 18 to 24) stand out for embracing a veriety of platform and using them frequently." Some 78% of 18-24 years old use snapchat and others site. Other youtube and twitter also famous for them. Similarly, 71% of Americans in this age group now use instragram and ckose to half (45%) are twiter.
In Bangladesh country Facebook are top site in here. all kinds of people know about facebook and have theirs account on Facebook. Its very very different from others. Even Dhaka is the capital of bangladesh, here most of the peoples are online in all the world.
Reference- [Prothomalo.com](http://en.prothomalo.com/science-technology/news/172014/68pc-Americans-use-Facebook)