Another day, another gripping Twitter study. Harvard Business research data has proven -- without even the faintest glimmer of a doubt, in case you were crushing the guts out of your keyboard in anticipation -- that Twitter is a broadcast medium and not a conversation.

What does this mean? It means that Twitter is a one-sided conversation and not a social network. However, the site still claims to be a social network, and many users are under the impression that they are holding deep discussions about sandwiches, TV shows and the like, when, in actuality, they're throwing 140-character blurbs at a brick wall with faces painted on it.

More: http://pcworld.com/article/166180/