Mohammed's post was about the election problem in Iran. This seems like an extremely controversial topic and i think evidence can be provided for both the point of views. i like the way people used twitter to spread information.However i do not understand why people in iran who were trying to raise awareness about what the government has done, chose to use twitter instead of other larger social networks like facebook. According to wikipedia, twitter has over a 100 million users while facebook has over 500 million users. Not only that but i believe that spreading awareness on facebook would seem more efficient because you can not only have blogs but also pictures, videos and groups of the situation itself.