Twitter is an online social networking service and microblogging service that enables its users to send and read text-based posts of up to 140 characters, known as "tweets". It was created in March 2006 by Jack Dorsey and launched that July. The service rapidly gained worldwide popularity, with over 300 million users as of 2011,[6] generating over 300 million tweets and handling over 1.6 billion search queries per day.[3][8][9] It has been described as "the SMS of theInternet."[10]
Twitter Inc. is based in San Francisco, with additional servers and offices in New York City (Click here for twitter)
Twitter, Inc.
 | |
| Type | Private |
|---|---|
| Founded | San Francisco, California, U.S. |
| Founder(s) | Jack Dorsey, Noah Glass, Evan Williams, Biz Stone |
| Headquarters | 795 Folsom Street, Suite 600, San Francisco, CA 94107, United States[1] |
| Area served | Worldwide |
| Key people | Dick Costolo (CEO) Jack Dorsey (Executive Chairman) Evan Williams (Director) Biz Stone (Creative director) |
| Industry | Internet |
| Revenue |  US$ 140 million (2010 est.)[2] |
| Employees | 600+ (2011)[3][4] |
| Website | Twitter.com |
| Alexa rank |  9 (March 2012)[5] |
| Type of site | Social network service,microblogging |
| Registration | Required (to post, follow or be followed) |
| Users | Over 500 million (June 2011)[6] |
| Available in | Multilingual |
| Launched | July 15, 2006[7] |
| Current status | Active |
