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Most of us know that Internet communities and social networking sites are popular, but how do blogs, podcasts, wikis and companies like Digg and MySpace work? Learn more in the Community & Social Networking section.

How Second Life Works

Featured Article: 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. See more »

Can Facebook make me rich?

Can Facebook make me rich?

Can Facebook get you $10 million? It can if you're a software developer who's generous with his ideas. The fbFund is offering grants to creative developers, but how do you get one? And if you're not a developer, how else can you make money on the Web

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Can I make my living in Second Life?

Can I make my living in Second Life?

What is revolutionary about Second Life is that it's not only legal to make real money from your character's virtual endeavors -- it's encouraged. The exchange of your accumulated virtual dollars into "real" dollars is built into the system.

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How Amazon Works

How Amazon Works

The story of Amazon.com is an e-commerce dream. Find out what Amazon does, what makes it different from other e-commerce Web sites and how its technology infrastructure supports its multi-pronged approach to online sales.

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How AOL Mail Works

How AOL Mail Works

AOL Mail is a free Web-based e-mail service available from America Online. Learn more about AOL Mail and related topics in this article.

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How Blogs Work

How Blogs Work

Blogs serve as online journals and communities, often linking to news stories and other sites. Learn the basics of blogging, explore the blogosphere and find out how to create your own.

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How Chat Rooms Work

How Chat Rooms Work

Chat rooms give us the chance to discuss anything and everything with people around the world. How do you get started, and what do you need to watch out for?

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How Computer Addiction Works

How Computer Addiction Works

Obsessively checking e-mail. Playing online games for 12 hours or more at a time. Placing more value on chat-room friends than real ones. Just what is computer addiction, and why do some doctors disagree over whether it exists at all?

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How Craigslist Works

How Craigslist Works

Whether you're looking for a job, apartment or motorcycle, chances are you've consulted Craigslist. Craigslist started as an electronic community newsletter but has become the go-to site for users in 450 communities worldwide.

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How did a programmer find sex offenders on MySpace?

How did a programmer find sex offenders on MySpace?

When MySpace claimed there was no way to patrol its own profiles for sexual predators, Wired News editor and former hacker Kevin Poulsen took it as a challenge.

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How Digg Works

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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How Facebook Works

How Facebook Works

A social networking site created for Harvard students, Facebook is now open for anyone to join -- and it's gained 5 million active users.

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How Friendster Works

How Friendster Works

The online social network Friendster connects you to your friends and your friends of friends. Can Friendster help you to find a job or to reconnect with that special someone?

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How Google Earth Works

How Google Earth Works

Online maps are great for people who get lost easily, and they're just plain fun for figuring out where stuff is. But Google Earth is no ordinary map.

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How LinkedIn Works

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?

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How MapQuest Works

How MapQuest Works

MapQuest made online mapping and navigation indispensable with alternate routes and the most up-to-date information. How does this complex system work?

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How much time do we spend on MySpace at work?

How much time do we spend on MySpace at work?

A study suggests that some businesses are losing $260 million a day from employees on MySpace and Facebook. Should companies block social networking sites altogether?

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How MySpace Works

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.

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How Newsgroups Work

How Newsgroups Work

Social networking and e-commerce may be all the rage, but many internet pioneers originally used the Internet for sharing ideas among large groups of people. Newsgroups were fundamental to early internet communication, and they're still good sources of information today.

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How Pandora Radio Works

How Pandora Radio Works

Pandora Radio is different from other Internet radio sites. Instead of relying on genre, user connections or ratings, it uses a Music Genome. What is this Music Genome and how does it know what songs you like best?

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How PayPal Works

How PayPal Works

The simple idea behind PayPal -- using encryption software to allow people to make financial transfers between computers -- has turned into one of the world's primary methods of online payment.

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