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Social Networks

Social networks cover every topic imaginable. Understanding which social networks are safe and which ones aren't is an important step.

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How Twitter Works

If you've got something you can say in just a few characters, you can reach lots of people with a single Tweet. How has Twitter changed social networking?

How LinkedIn Works

LinkedIn is a social networking site geared toward professionals where you can look for a job, find sales leads or connect with colleagues. So how is it different than all the other networking sites?

How Facebook Works

A social networking site originally created for Harvard students, Facebook is now open for anyone to join -- and it currently has 750 million active users. What features have made it such a big success?

How Second Life Works

Second Life is a three-dimensional virtual world where you can live in a castle, fly to dance clubs and change your appearance with a click of your mouse.

How MySpace Works

One of Web's most explosive phenomena, MySpace grew to 54 million profiles seemingly overnight. Find out what MySpace really is, how it blew past the competition and why Rupert Murdoch thought it was worth $580 million.

How Digg Works

Digg.com is a user-driven news Web site that lets people find, submit, review and feature stories from every corner of the Web.

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