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

Is Your Social Media Content D.O.A.? Try This. (Infographic)
Social Media

Is Your Social Media Content D.O.A.? Try This. (Infographic)

You put lots of time into crafting the perfect post, only for it to fall flat. Here's how to increase its shots at going viral.
Wendy Frink
Taking Aim at Twitter, Facebook Ramps Up Celeb Presence
Social Media

Taking Aim at Twitter, Facebook Ramps Up Celeb Presence

The social giant continues to take aim at rival Twitter with an emphasis on VIP users and entertainment partnerships.
Nina Zipkin
Build Your Personal Brand on Social Media, Moment by Moment
Marketing Edge

Build Your Personal Brand on Social Media, Moment by Moment

Online platforms are outlets to develop and broadcast your voice, but you have to be careful and considerate.
Jim Joseph
Want Your Employees to Share Company Social Media Posts? This One-Click Tool Makes It Easy.
National Small Business Week

Want Your Employees to Share Company Social Media Posts? This One-Click Tool Makes It Easy.

Convincing your team to regularly share company social media posts is no easy task. Here, social media marketing expert Brian Honigman reveals his favorite fix for this common conundrum.
Kim Lachance Shandrow
Want to Work For Me? Be My Facebook Friend.
Leadership

Want to Work For Me? Be My Facebook Friend.

Is looking into online activities an invasion of privacy? Maybe, but it's important to learn everything you can about a job candidate.
Gene Marks
Presented by
Facebook Suffers 30-Minute Outage, Twitterverse Goes Ballistic
Facebook

Facebook Suffers 30-Minute Outage, Twitterverse Goes Ballistic

Disgruntled Facebook users vented and poked fun at the outage on Twitter, with the 'Facebookisdown' hashtag receiving 49,000 mentions during the 30-minute period.
Twitter Announces Support of GIFs, the Internet Goes Crazy
Gifs

Twitter Announces Support of GIFs, the Internet Goes Crazy

A sampling of how companies large and small have used the new GIF capability for their marketing purposes.
Jason Fell
With Stalling Growth, Twitter's COO Tweets His Resignation
Leadership

With Stalling Growth, Twitter's COO Tweets His Resignation

No replacement will be named as Ali Rowghani's responsibilities will be redistributed among other executives.
Geoff Weiss
Presented by
Which Social Media Accounts Really Matter and Why
National Small Business Week

Which Social Media Accounts Really Matter and Why

Don't waste your time messing around on social sites that have no ROI for you. Here's how you can do better at gaining leads on the sites that are perfect for your business.
Neil Patel
Twitter's TweetDeck Returns After Security Issue Derailment
Security

Twitter's TweetDeck Returns After Security Issue Derailment

Popular social-media tool gets hit by hackers sending strange messages.
Jason Fell
How the World Cup Is Fueling a Social Media Frenzy (Infographic)
Social Media

How the World Cup Is Fueling a Social Media Frenzy (Infographic)

Roughly 74 percent of viewers are expected to be on social media while watching the games, according to this infographic.
Geoff Weiss
Fab's CEO Refutes 'Hateful Rumors' That His Company Is Shutting Down
Fab

Fab's CEO Refutes 'Hateful Rumors' That His Company Is Shutting Down

After a report surfaced that the struggling ecommerce site is starting to close down, CEO and co-founder Jason Goldberg took to Twitter to deny the claims.
Laura Entis
Overwhelmed by Email and Social Mentions? This Tool Tames Both.
National Small Business Week

Overwhelmed by Email and Social Mentions? This Tool Tames Both.

Here's what marketing expert Brian Honigman uses to funnel all of his email and social media communications into a single central inbox that makes sense of it all.
Kim Lachance Shandrow
Want Your Brand Associated With Positivity? Snap a Pic, Ditch the Tweet.
Social Media Marketing

Want Your Brand Associated With Positivity? Snap a Pic, Ditch the Tweet.

New finding show that picture posts are four times more likely to provide warm and fuzzy feeling compared to text posts.
Laura Entis