Twitter maybe familiar amongs bloggers environment. But, do you really know what Twitter is ?

Wikipedia.org >> said that :

Twitter is a social networking and micro-blogging service that allows its users to send and read other users' updates (known as tweets), which are text-based posts of up to 140 characters in length.

Updates are displayed on the user's profile page and delivered to other users who have signed up to receive them. Senders can restrict delivery to those in their circle of friends (delivery to everyone being the default). Users can receive updates via the Twitter website, SMS, RSS, or through applications such as TwitterMobile, Tweetie, Twinkle, Twitterrific, Feedalizr, Facebook, and Twidget, a widget application. Four gateway numbers are currently available for SMS: short codes for the United States, Canada, and India, and a United Kingdom-based number for international use. Several third parties offer posting and receiving updates via email. Estimates of the number of daily users vary as the company does not release the number of active accounts. In November 2008, Jeremiah Owyang of Forrester Research estimated that Twitter had 4-5 million users. A February 2009 Compete.com blog entry ranks Twitter as the third largest social network (behind Facebook and MySpace), and puts the number of users at roughly 6 million and the number of monthly visitors at 55 million.

Twitter messages may be tagged using hashtags, a word or phrase prefixed with a #, such as #beer. This enables tweets on a specific subject to be found by simply searching for their common hashtag, provided that the user has tagged their tweet.

Twitter was founded by Jack Dorsey, Noah Glass, Biz Stone, and Evan Williams, began as a research and development project inside San Francisco podcasting company Odeo in March 2006.

ZDNet on February 21st, 2009 published an article about twitter.

Titled "The Twitter Fantasy" it said that :

It seems everywhere you turn these days there’s an excitable story about Twitter, the microblogging tool that is a mystery to some people, a miracle to others, and a service some are noisily evangelizing in hope of self publicity.

As Twitter scales up in user numbers, the level of hysteria seems to be going through the roof. Along with a huge army of self proclaimed social media experts, most of whom appear never to have actually worked on or been around a grown up marketing campaign in their lives, we also have the bullhorn aggregator brigade - the folks that busily hoover up information and then breathlessly and sometimes bossily rebroadcast to anyone listening.

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