Last week, as Facebook celebrated its sixth birthday, the company announced that it was surpassing the 400 million-user milestone. That’s one good reason why it pays for businesses to have Facebook Pages. That’s not the only impressive number though.

Facebook has released a whole slew of statistics about how the site is used by those people. Following are those statistics:

- More than 400 million active users
- 50% of our active users log on to Facebook in any given day
- More than 35 million users update their status each day
- More than 60 million status updates posted each day
- More than 3 billion photos uploaded to the site each month
- More than 5 billion pieces of content (web links, news stories, blog posts, notes, photo albums, etc.) shared each week
- More than 3.5 million events created each month
- More than 3 million active Pages on Facebook
- More than 1.5 million local businesses have active Pages on Facebook
- More than 20 million people become fans of Pages each day
- Pages have created more than 5.3 billion fans
- Average user has 130 friends on the site
- Average user sends 8 friend requests per month
- Average user spends more than 55 minutes per day on Facebook
- Average user clicks the Like button on 9 pieces of content each month
- Average user writes 25 comments on Facebook content each month
- Average user becomes a fan of 4 Pages each month
- Average user is invited to 3 events per month
- Average user is a member of 13 groups
- More than 70 translations available on the site
- About 70% of Facebook users are outside the United States
- Over 300,000 users helped translate the site through the translations application
- More than one million developers and entrepreneurs from more than 180 countries
- Every month, more than 70% of Facebook users engage with Platform applications
- More than 500,000 active applications currently on Facebook Platform
- More than 250 applications have more than one million monthly active users
- More than 80,000 websites have implemented Facebook Connect since its general availability in December 2008
- More than 60 million Facebook users engage with Facebook Connect on external websites every month
- Two-thirds of comScore’s U.S. Top 100 websites and half of comScore’s Global Top 100 websites have implemented Facebook Connect
- There are more than 65 million active users currently accessing Facebook through their mobile devices.
- People that use Facebook on their mobile devices are almost 50% more active on Facebook than non-mobile users.
- There are more than 180 mobile operators in 60 countries working to deploy and promote Facebook mobile products

Google is reportedly getting ready to release a feature for Gmail, that may be seen as a competitor to Facebook. Gmail may not have such an impressive list of stats, but taking the rest of Google’s products into consideration, I think it would be fascinating to see a similar list to compare.

Facebook is allegedly working on its own email service. That will be an additional stat to keep an eye on.
 

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> Reasons to Have a Facebook Page and Ways to Make it Better