Twitter and Iran: Much ado about nothing

Tensions over Mahmoud Ahmadi-Nejad's election have escalated. But while the image of Neda Salehi Agha-Soltan, who was bleeding to death on a Teheran street, made it on all social networks and onto Twitter, Flickr.... .... did it help to improve the situation of those in Iran?

Is this a tragic case study that illustrates tweeting during a political crisis may spread the news but do...