As protesters take to the streets, both sides of the debate have taken to the the Internet.
Twitter and other blogs are being used to direct users to a number of sites and tools that encourage people to target government web sites.
“Democracy needs you, Twitter!” wrote a user named temp09. “Twitter, do not condemn the people of Iran to silence,” another named tinyi added. “Upgrades can wait. The people dying in Iran cannot,” pleaded a twitterer going by the name hoopiest_frood, when a Twitter network upgrade was announced in the midst of the action.
The attacks are mainly aimed at damaging infrastructure to prevent comminucations. News sites are also on the hit list.