The US Government has been using a variety of social media networking tools to ensure the message about the recent Salmonella outbreak in peanut butter is communicated widely.
"....Officials with Health and Human Services Department and the Centers for Disease Control and Prevention said social media helped them spread the word that peanut butter recall. The agencies used widgets, blogs, Twitter, podcasts, mobile alerts and online videos to warn the public that peanut butter manufactured by Peanut Corp. of America for institutional use and for additives in other products such as snacks may be tainted with salmonella. Eight people died and 500 were sickened by the infected peanut butter...."