How social networking work?
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est friends in close to real time? Here's how they do it.

By Steven J. Vaughan-Nichols
ITworld |JANUARY 7, 2010
I'm on a social network; you're on a social network, these days it seems we're all on at least one social network--like Facebook, Twitter, etc. etc--if not two, three, or even more.
To be exact, the Pew Internet & American Life Project’s December 2008 tracking survey found that 35% of adult internet users now have a profile on an online social network site. If you're a teenager, the numbers jump to 65%, but, it's the young adults who really are behind the social networks. 75% of them belong to at least one social network. Since then, the social networks have only continued to grow at an explosive rate.
How do the social networks manage millions of users and hundreds of millions of updates? The answers lie in open-source software and thousands of servers. Let's take a look behind the doors of a few top social networks -- Twitter, LinkedIn, Facebook, and MySpace -- and see exactly how they pull their tricks off.
The first thing that jumps out at you is that they're almost all based on open-source software. For example, the operating systems behind Twitter, est friends in close to real time? Here's how they do it.

By Steven J. Vaughan-Nichols
ITworld |JANUARY 7, 2010
I'm on a social network; you're on a social network, these days it seems we're all on at least one social network--like Facebook, Twitter, etc. etc--if not two, three, or even more.
To be exact, the Pew Internet & American Life Project’s December 2008 tracking survey found that 35% of adult internet users now have a profile on an online social network site. If you're a teenager, the numbers jump to 65%, but, it's the young adults who really are behind the social networks. 75% of them belong to at least one social network. Since then, the social networks have only continued to grow at an explosive rate.
How do the social networks manage millions of users and hundreds of millions of updates? The answers lie in open-source software and thousands of servers. Let's take a look behind the doors of a few top social networks -- Twitter, LinkedIn, Facebook, and MySpace -- and see exactly how they pull their tricks off.
The first thing that jumps out at you is that they're almost all based on open-source software. For example, the operating systems behind Twitter,

By Steven J. Vaughan-Nichols
ITworld |JANUARY 7, 2010
I'm on a social network; you're on a social network, these days it seems we're all on at least one social network--like Facebook, Twitter, etc. etc--if not two, three, or even more.
To be exact, the Pew Internet & American Life Project’s December 2008 tracking survey found that 35% of adult internet users now have a profile on an online social network site. If you're a teenager, the numbers jump to 65%, but, it's the young adults who really are behind the social networks. 75% of them belong to at least one social network. Since then, the social networks have only continued to grow at an explosive rate.
How do the social networks manage millions of users and hundreds of millions of updates? The answers lie in open-source software and thousands of servers. Let's take a look behind the doors of a few top social networks -- Twitter, LinkedIn, Facebook, and MySpace -- and see exactly how they pull their tricks off.
The first thing that jumps out at you is that they're almost all based on open-source software. For example, the operating systems behind Twitter, est friends in close to real time? Here's how they do it.

By Steven J. Vaughan-Nichols
ITworld |JANUARY 7, 2010
I'm on a social network; you're on a social network, these days it seems we're all on at least one social network--like Facebook, Twitter, etc. etc--if not two, three, or even more.
To be exact, the Pew Internet & American Life Project’s December 2008 tracking survey found that 35% of adult internet users now have a profile on an online social network site. If you're a teenager, the numbers jump to 65%, but, it's the young adults who really are behind the social networks. 75% of them belong to at least one social network. Since then, the social networks have only continued to grow at an explosive rate.
How do the social networks manage millions of users and hundreds of millions of updates? The answers lie in open-source software and thousands of servers. Let's take a look behind the doors of a few top social networks -- Twitter, LinkedIn, Facebook, and MySpace -- and see exactly how they pull their tricks off.
The first thing that jumps out at you is that they're almost all based on open-source software. For example, the operating systems behind Twitter,
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online social networks are decentralized and distributed computer networks where users communicate with each other through internet services. networking social network services used primarily for non-social interpersonal communication (e.g., LinkedIn, a career- and employment-oriented site)
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