Interesting Numbers

About Facebook

- 800 million: users
- 500 million: access every day
- 350 million: access via mobile
- 2000: the number of people who work at Facebook

About Average Friends on Facebook

- 5: your inner circle of trust
- 15: your sympathy group
- 50: people you can keep up to date with
- 150: the physiological limit of our brain's ability to interact with people

About LinkedIn

- 130 million: sign-ups out of a global universe of 600 million professionals
- 2: new sign-ups per second

About Google

- 5 billion: users by end of 2010
- 5 billion: searches a day
- 3 million channels: (the number of channels on YouTube in the next 5 years)
- 250 million: the number of websites Google searches
- 20,000: the number of people who work at Google

About Mobile

- 80%: the percentage of clients who don't have a mobile-adapted website
- 95%: the percentage of mobile apps that fail!
- 835 million: the number of people who currently use smart phones
- 5.6 billion: total mobile phone users and the potential for growth as
smart phones take over

About Yelp

- 20 million: the number of reviewers who drive the quality of their
data

About Twitter

- 800: the number of people who work at Twitter
- 8000: the record for the number of tweets per second (Beyonce
announcing she was pregnant in the MTV movie awards)
- 100 million: active users
- 600,000: new users every day
- 250 million: tweets a day
- 57%: the percentage of active users on mobile

About Zynga

- 3300: the number of people who work at Zynga
- 55 million: players per day
- 13: the number of different languages they play in
- $52 billion: the size of the gaming market