All totalitarian governments seek to control by stifling dissent and free expression. The Internet is remarkably able at subverting such efforts, except when the voiceless are themselves imprisoned. Iran has done just such a thing by imprisoning two or more bloggers for the act of blogging. This requires a show of solidarity, a call to arms for those with a voice to speak out in the name of reason.
A worthy meme to spread - Free Mojtaba and Arash before the people of Iran free them. (Ref Billy's World) A good roundup at blogcritics with these suggestions
If you are in the United States, contact either the Representative at the Iranian Interest Section of the Pakistani Embassy or the Ambassador to Iran’s Permanent Mission to the United Nations. (Iran has no embassy in the United States.) Here is the contact information.
Dr. Mohammad Javad Zarif
Ambassador and Permanent Representative to the Permanent Mission of the Islamic Republic of Iran
622 Third Ave. New York, NY 10017
Tel: (212) 687-2020 / Fax: (212) 867-7086
E-mail: Email the ambassador
If you are outside the U.S., as many of you will be, you can contact either the Permanent Representative to the United Nations or the Iranian ambassador in your own country.