Twitter is on online news and social networking site where people communicate in short messages called tweets. Twitter is a blend of instant messaging, blogging, and texting, but with brief content and a very broad audience. Companies also use Twitter as a Marketing Tool. 

Some people also use Twitter to discover interesting people and companies online and to follow their tweets for as long as they are interesting.

The great majority of tweeters do this microblogging as a recreational thing, but there is a growing number of Twitter users who send out some really useful content. And that’s the real value of Twitter: it provides a stream of quick updates from friends, family, scholars, news journalists, and experts. It empowers people to become amateur journalists of life, describing and sharing something that they found interesting about their day.