Facebook's 5th Birthday, 18 Interesting Statistics, and the other 3 Co-Founders

It feels like Facebook has been around for ever now, but it's only been 5 years. Happy 5th Birthday Facebook!

Here are some interesting statistics about Facebook:

General Growth

More than 150 million active users

More than half of Facebook users are outside of college

The fastest growing demographic is those 30 years old and older

User Engagement

Average user has 120 friends on the site

More than 3 billion minutes are spent on Facebook each day (worldwide)

More than 15 million users update their statuses at least once each day

More than 3.5 million users become fans of Pages each day

Applications

More than 850 million photos uploaded to the site each month

More than 5 million videos uploaded each month

More than 24 million pieces of content (web links, news stories, blog posts, notes, photos, etc.) shared each month

More than 2 million events created each month

More than 20 million active user groups exist on the site

International Growth

More than 35 translations available on the site, with more than 60 in development

More than 70% of Facebook users are outside the United States

Platform

More than 660,000 developers and entrepreneurs from more than 180 countries

More than 52,000 applications currently available on Facebook Platform

140 new applications are added per day

More than 95% of Facebook members have used at least one application built on Facebook Platform

Mark Zuckerberg hogs all the air time, but did you Facebook actually has 4 Founders?

Taken from Facebook's Press Page, here are their brief bios:

Mark Zuckerberg

Mark Zuckerberg is the CEO of Facebook, which he founded in 2004. Mark is responsible for setting the overall direction and product strategy for the company. He leads the design of Facebook's service and development of its core technology and infrastructure. Mark attended Harvard University and studied computer science before moving the company to Palo Alto, California.

Chris Hughes

Chris Hughes is a co-founder of Facebook. Chris first worked as the Facebook spokesperson from his dorm room with Mark Zuckerberg and Dustin Moskovitz, and later moved to Palo Alto work on the product team. Most recently, Chris served as the Director of Online Organizing for Barack Obama's 2008 presidential campaign. He holds a bachelors degree in history and literature from Harvard University, where he graduated magna cum laude.

Dustin Hughes

Dustin Moskovitz is a co-founder of Facebook and was a key leader within the technical staff. He most recently worked on the company’s internal tools strategy and development. Dustin attended Harvard University as an Economics major for two years before moving to Palo Alto, California to work full-time at Facebook.

Eduardo Saverin

Eduardo Saverin is a co-founder of Facebook. Eduardo managed the business development and sales aspects during Facebook's early years. Eduardo graduated magna cum laude from Harvard College with a degree in Economics.