“James Karl Buck helped free himself from an Egyptian jail with a one-word blog post from his cell phone. Buck, a graduate student from the University of California-Berkeley, was in Mahalla, Egypt, covering an anti-government protest when he and his translator Mohammed Maree were arrested April 10.

On his way to the police station, Buck took out his cell phone and sent a message to his friends and contacts using the micro-blogging site Twitter.

The message only had one word. “Arrested.”

Within seconds, colleagues in the United States and his blogger-friends in Egypt — the same ones who had taught him the tool only a week earlier — were alerted he was being held.” [CNN]