When Twitter first started, it was just a quick way to message friends to let them know what you were doing. 140 Characters. Then came the raid on bin Laden, and twitter became a de facto news service. Within the span of minutes, different people and news agencies were reporting different things about the raid. Some said it had happened 2 weeks prior; some said it had happened two days before. Turns out it was happening at that very moment.
Read the article, and feel free to post your discussions about what you think Twitter is, and how it should now it should be viewed as a news source