Twitter

Twitter

Twitter is a popular microblogging social network service. The San Francisco-based company was founded by Jack Dorsey, Biz Stone, and Evan Williams in 2006.

Users are able to send and read messages -- also known as tweets -- that are up to 140 characters long. Tweets are publicly visible unless a user protects his or her account so that only approved users have access to it. Users can "follow" friends and colleagues, as well as their favorite brands, news outlets and other institutions. Twitter has also become a useful marketing tool for businesses.

A username, or user's "handle," is generally a series of letters and numbers preceded by the "@" sign. For instance, Entrepreneur magazine's Twitter handle is @EntMagazine. Tweets can be tracked in groups by using a hashtag, or the "#" sign, before the word or phrase.

As of September 2011, Twitter said it has 100 million active users worldwide.

Today's Most Read

News and Articles About Twitter

Getting Bored of Social Media? You're Not Alone. (Infographic)
Social Media

Getting Bored of Social Media? You're Not Alone. (Infographic)

If you're thinking of quitting Facebook, get in line.
Wendy Frink
Ex-NFL Star Chad 'Ochocinco' Johnson Scores a Touchdown for Bitcoin Awareness on Twitter
Bitcoin

Ex-NFL Star Chad 'Ochocinco' Johnson Scores a Touchdown for Bitcoin Awareness on Twitter

The hot-tempered former NFL wide receiver wonders how 'easy'' the complicated cryptocurrency is. Don't even get us started.
Kim Lachance Shandrow
Twitter Geeks Out on Data, Acquires Gnip
Twitter

Twitter Geeks Out on Data, Acquires Gnip

Twitter has snagged six-year-old social data startup Gnip for an undisclosed amount.
Wendy Frink
Porn Accident: US Airways Issues Worst Brand Tweet of All Time
Social Media

Porn Accident: US Airways Issues Worst Brand Tweet of All Time

The airline's recent PR nightmare is a reminder to slow down, pay closer attention and think before you tweet.
Kim Lachance Shandrow
A Guide to the Best Times to Post on Social Media (Infographic)
Social Media

A Guide to the Best Times to Post on Social Media (Infographic)

If you aren't posting to social media when most of your audience members are on, all that time you spent can go to waste. These are the times you should focus on.
Kristin Piombino
A Tour Inside Twitter's Stylish New San Francisco Headquarters
Twitter

A Tour Inside Twitter's Stylish New San Francisco Headquarters

The building Twitter calls home previously stood vacant for 50 years. See how the social-media company revamped its new headquarters.
Robert Johnson
The Year Ahead: 5 Social Media Trends Every Entrepreneur Needs to Know
Social Media

The Year Ahead: 5 Social Media Trends Every Entrepreneur Needs to Know

It's critical to reevaluate your social media strategy at least once a year, if not quarterly.
Jayson DeMers
How 122-Year-Old General Electric Is Killing It on Social Media
Social Media

How 122-Year-Old General Electric Is Killing It on Social Media

You don't have to be a sexy startup to succeed on social media. Look at how GE is changing the mind of its customers.
Wendy Frink
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Twitter's Redesign Makes Photos the Focal Point
Social Media

Twitter's Redesign Makes Photos the Focal Point

Twitter is rolling out revamped profile layouts with broadened images and new features, like the automatic enlargement of top-performing content.
Geoff Weiss
Now You Can Send Private Vine Videos to Friends, Others
Vine

Now You Can Send Private Vine Videos to Friends, Others

A new feature allows you to direct-message your six-second videos to others, including those who aren't on Vine.
Wendy Frink
Twitter Adds Multiple Photo Option, But Do Brands Care?
Twitter

Twitter Adds Multiple Photo Option, But Do Brands Care?

Users can now add up to four photos in a tweet, but brands seem to prefer the single photo option so far.
Wendy Frink
How Twitter Is Making it Easier to Travel Back in Time
Twitter

How Twitter Is Making it Easier to Travel Back in Time

The social network now allows users to search tweets by date range.
Wendy Frink
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Use These Twitter Guidelines to Avoid a PR Nightmare
Social Media

Use These Twitter Guidelines to Avoid a PR Nightmare

Before you send a single message out on Twitter, decide just what you want to do -- and what you don't -- when it comes to tweeting. Here are some guidelines to consider implementing for your Twitter campaigns.
Scott Levy
Square Market Now Takes Bitcoin Payments
Innovation

Square Market Now Takes Bitcoin Payments

Paying for cool indie gadgets and gear and artisanal food with the world's first digital cash just got easier. Well, sort of.
Kim Lachance Shandrow