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

From Google to Warby Parker: The Origins Behind 10 of the Wackiest Company Names
Marketing

From Google to Warby Parker: The Origins Behind 10 of the Wackiest Company Names

Business owners are increasingly throwing out the rulebook when it comes to playing the name game. Here are the anecdotes behind 10 of our favorites.
Geoff Weiss
Afraid of Sharks? No Problem. Just Check Twitter.
Marketing

Afraid of Sharks? No Problem. Just Check Twitter.

Scientists in Western Australia have outfitted more than 320 sharks with transmitters that trigger warning tweets when they arrive within one kilometer of popular beaches.
Geoff Weiss
Smart Twitter Guidelines to Follow
Social Media

Smart Twitter Guidelines to Follow

If you're new to Twitter, these guidelines can help you 'think before you tweet.'
Scott Levy
Delivered by
How Denny's Weirdness Wins the Social Media Game
Franchises

How Denny's Weirdness Wins the Social Media Game

Denny's stands out in social media by breaking the rules-- and posting photos of pugs in seas of ranch dressing.
Kate Taylor
Report: Andreessen Horowitz to Raise Another $1.5 Billion
Finance

Report: Andreessen Horowitz to Raise Another $1.5 Billion

The noted venture-capital firm is reportedly in the process of raising $1.5 billion in its new round of fundraising.
Geoff Weiss
7 Ways Social Media Will Be More Expensive This Year
Marketing

7 Ways Social Media Will Be More Expensive This Year

Brands will have to pony up a lot more money for staffing and other costs of online marketing and audience engagement.
Work Hard and Dream Big: 5 Inspiring Entrepreneurs You Should Follow on Twitter
Marketing

Work Hard and Dream Big: 5 Inspiring Entrepreneurs You Should Follow on Twitter

Here are some of the business owners we love to follow on Twitter. We bet you'll find them inspiring, too.
Kim Lachance Shandrow
Join the LIVE CHAT With Entrepreneur Magazine Editor-in-Chief Amy Cosper for #MentorMonth
Starting a Business

Join the LIVE CHAT With Entrepreneur Magazine Editor-in-Chief Amy Cosper for #MentorMonth

What's the best advice a mentor ever gave you? Join the conversation and let us know.
Entrepreneur Staff
Why You Should Let Customers Help Mold Your Company
Growth Strategies

Why You Should Let Customers Help Mold Your Company

Feedback could lead to valuable lessons and even new product ideas.
Matthew Toren
How to Steal Your Competitor's Social Media Followers
Marketing

How to Steal Your Competitor's Social Media Followers

If you want to accelerate your social media game by getting followers from your competitors, here are several tips you should consider.
Felix Tarcomnicu
How Transparency Can Help You Succeed on Twitter
Social Media

How Transparency Can Help You Succeed on Twitter

Discover how you can be engaging, share your passions and talk about your brand as it relates to real people in order to attract a following.
Scott Levy
HBO Hedges on Social Media to Reach 'Challenging' Demographic
Marketing

HBO Hedges on Social Media to Reach 'Challenging' Demographic

In an unprecedented move, the network uploaded the first two episodes of 'Girls' onto its YouTube channel this morning, hoping to engage the show's online fan base.
Geoff Weiss
Biz Stone's Answer to the Search Engine Has Arrived, But Will Anyone Use It?
Technology

Biz Stone's Answer to the Search Engine Has Arrived, But Will Anyone Use It?

Twitter co-founder Biz Stone has launched a Q&A app called Jelly with the mission of making the world 'a more empathetic place.'
Nina Zipkin
Dallas Police Chief Announces Firings on Twitter. Good Policy?
Growth Strategies

Dallas Police Chief Announces Firings on Twitter. Good Policy?

Every time police chief David Brown terminates an employee, he takes to Twitter and Facebook to share whom he fired and why.
Laura Entis