The document shows the number of users for several social networking sites. Facebook has over 1 billion users, more than any other site. Twitter is the second largest with over 800 million users, followed by Mobage and Mixi with over 500 million and 200 million users respectively.

1. the number of users
1,000,000,000
830,000,000
800,000,000
number
600,000,000
world
all of
the
the
520,000,000
400,000,000
200,000,000
36,000,00026,000,000
0
Facebook twitter mobage mixi
SNS