Twitter is a free social networking and micro-blogging service that has changed the way many people communicate. Twitter allows users to send “updates” (or “tweets”: text-based posts, up to 140 characters long) to Twitter website via short message service (e.g. on a cell phone), instant messaging, from their computer at home or work, or through a third-party application.
Some see this as a way to simply report their ’status’ to friends, some use it to post interesting links, some use it as a savvy marketing tool and still there are countless ways to utilize this real time quick messaging application.
It’s very easy to do. You just sign up (free registration), pick a user name (your site or profile web page will be ‘http://twitter.com/your name here’), and you can ‘design’ your Twitter home page by uploading an image or choosing web colors.