Virtual US embassy in Iran blocked

Residents of Tehran say that a web-based US 'embassy' to Iran has been blocked by the authorities, less than a day after it went online. The English- and Farsi-language website, designed by Washington as a virtual diplomatic mission, had been briefly available to Internet users in Tehran after its Tuesday debut. It could not be accessed on Wednesday.
Iranian Internet users trying to view the site say they were greeted by a message stating that their browser could not display it, or by a page provided by Iranian authorities that suggested links to local websites instead. Numerous websites, including international media and social networking sites, are unavailable in Iran.