Twitter in America is simply a social networking tool to talk about basically nothing except what we are doing. But in Iran, Twitter is proving to be more than this and may at some point change the way the world communicates. Time Online has an interesting article about Twitter and Iran.
Twitter was scheduled for a 2 hour maintenance and decided to postpone this close down of Twitter for the sake of Iran. Imagine the outcome of many of our historical events had people had the benefits of instant communication.
Apparently the radio was key is helping Hilter rise to power. People could hear him. Imagine having Twitter during the Holocaust. Since no one controls Twitter, the folks on the street are able to have their voices heard.