There was an old Twilight Zonesome show episode, which took place just before the invasion of Berlin, and Hitler realising his war was lost, about to get into a time-machine so he could go back and change the course of the war. However, he was interrupted by a disheveled, and slightly deranged man who was yelling and warning him not to do it. He had his SS guards shoot the man, and promptly gets into his time machine. Much flashing of...

Twitter is a micro-blogging service, which limits your entries to 140 characters of unstructured text. It allows you to follow people you like, and to have others follow you. With its 140 character limit, it would not be too far fetched to say that it is the SMS of the internet, with closed user groups thrown in. You could send a tweet, or a mass SMS using the same analogy, to everyone who follows you or you could target your tweets to...