Social Network Statistics 2011

Facebook:

Average user has 130 friends on the site (KB)
Average user sends 8 friend requests per month (KB)
Average user spends an average 15 hours and 33 minutes on Facebook per month (KB)
Average user visits the site 40 times per month (KB)
Average user spends an 23 minutes (23:20 to be precise) on each visit (KB)
Average user is connected to 80 community pages, groups and events (KB)
Average user creates 90 pieces of content each month (KB)
200 million people access Facebook via a mobile device each day (KB)
More than 30 billion pieces of content are shared each day (KB)
Users that access Facebook on mobile devices are twice as active on Facebook compared to non-mobile users (KB)
Facebook generates a staggering 770 billion page views per month (KB)
Facebook has more than 500 million active users (KM)
50 percent of @facebook active users log on in any given day (KM)
Each day, 55 million status updates are made on Facebook (KM)
Each day, 35 million people update their status on Facebook (KM)
More than 150 million active users currently access @facebook through their mobile device (KM)
Global Audience of 656,870,980 people (CFB)
US Audience of 155,235,060 people, 23% of Global Audience (CFB)
8,695,560,138 Visits per month (QC)
Gender: 55% Female, 45% Male (QC)
Age (QC)

Twitter:

In the past year alone, the average number of tweets per day has nearly tripled from 50 million to 140 million. (HP)
Tweets generally spike during a significant cultural event, and recent figures have been staggering. On March 11, the day of the Japan earthquake and tsunami, Twitter users exceeded the average daily tweets by 37 million--that's 177 million tweets in a single day. (HP)
572,000 new accounts were created on March 12. For the past month, the average daily sign-up rate has been 460,000 new accounts, and Twitter has also marked a 182% increase in the number of users tweeting from mobile devices in the past year. (HP)
1 week. The time it now takes for users to send a billion Tweets. (KM)
50 million. The average number of Tweets people sent per day, one year ago. (KM)
140 million. The average number of Tweets people sent per day, in the last month. (KM)
177 million. Tweets sent on March 11, 2011. (KM)
6,939. Current TPS record, set 4 seconds after midnight in Japan on New Year’s Day. (KM)
460,000. Average number of new Twitter accounts per day over the last month. (KM)
182%. Increase in number of mobile Twitter users over the past year. (KM)
31,017,254 Unique visitors over the past 6 months (CM)
59,471 websites refer traffic to Twitter (CM)
1,399,127,428 Average number of visits per month over the past 3 months (December through the end of February) (QC)
Gender: 55% Female, 45% Male (QC)
Age (QC)