… the State Department is advising social networking sites to make sure their networks stay up and running for Iranians to use them and helping them stay ahead of anyone who would try to shut them down.
For example, senior officials say the State Department asked Twitter to refrain for going down for periodic scheduled maintenance at this critical time to ensure the site continues to operate. Bureau’s and offices across the State Department, they say, are paying very close attention to Twitter and other sites to get information on the situation in Iran.