Question: which is the most popular social media?
Answer: 1. Facebook – 2.23 billion MAUs. Facebook is the biggest social media site around, with more than two billion people using it every month. ... 
YouTube – 1.9 billion MAUs. YouTube is a video-sharing platform where users watch a billion hour of videos every day. ... 
WhatsApp – 1.5 billion MAUs. ... 
Messenger – 1.3 billion MAUs.