Was the uproar in Iran precipitated by online Social Networking?

It is said the protests for the past 4 days were precipitated by “that other SN tool-Tw%$^er”. It is said that this is the worst social unrest since the Revolutions which preceeded the ousting of the Shah. So far seven people have been killed for protesting the election results putting Aminijad back in office. The most conservative voices say the vote would have been closer thanthe 2 to 1 claimed by the office. Satellites have been blocked, electronic transmissions are being compromised throughout the country. Aminijad had sole control of the media and is continuing to control the access to free exchange of ideas, yet allowing protests under duress by international exposure. What will become of this situation? Will a coup occur? Will we send troops? How will this situation play out?