Imagine doing crisis communications during this scenario: A national fast-food chain has to respond to a video, spreading rapidly online, that shows one of its employees picking his nose and placing the result in the food he's making.

By now you have seen the disgusting Dominos' video. That's Exactly what the pizza delivery giant had to do.

Thanks to the explosion of social media, expect a similar scenario to happen link this again. When it does, here are key things (according to USA Today) that experts say marketers can do to quickly catch and respond effectively to similar social-networking attacks.