Officials with Health and Human Services Department and the Centers for Disease Control and Prevention 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.
The FDA created a database of recalled products, which the public could search either by product name or category such as cookies, chips and crackers (sounds like a good case for a TrackVia database). The also used a blog, Twitter and video as well as social networks like MySpace and Second Life (insert flying peanut here ;) to get the word out.
Nice work, let's hope that we see this type of behavior continue!