Facebook:
1) How many people use Facebook: 1.591 billion monthly active users
2) Total number of Facebook active users: 1.038 billion daily active users
3) Time spent on Facebook per user per day: 20+ minutes
4) Number of Facebook users in India: 132million
Twitter:
1) Number of people that use twitter: 320 million
2) Total number of twitter registered users: 1.3 billion
3) Average time per month spent by users on twitter: 170 minutes
4) Daily active twitter users: 100 million
Instagram:
1) How many people use Instagram: 400 million monthly active users
2) Number of daily Instagram Users: more than 75 million
3) How many Instagram photos have been shared: 40 billion photos
4) Average number of Instagram posts per day per user profile: 2.69 posts per day
Pinterest:
1) How many people use Pinterest: 100 million active users
2) Number of registered Pinterest users: 176 million
3) Reported value of Pinterest: $11 million
4) Number of Pinterest Users in India: 2.1 million
Google Plus:
1) How many people use Google+: 300 million monthly active users
2) Number of Google+ unique mobile monthly users: 20 million
3) Average monthly time spent on Google +: 7 minutes
4) Average sales order value for visitors referred by Google+: $40
