Examples of Social Media Promos that Succeeded
1.  Moe's Southwest Grill -- exploded watermelon, light bulb, etc, in microwave.  The video was a hit.
2.  Taco Bell and Old Spice had a combat conversation on Twitter.
3.  Website showing how a photographer primped and prepped a Quarter Pounder with Cheese for a McDonald's photo shoot.  The video was a hit.
4.  Dunkin Donuts' website showed the different varieties of donuts, like mochi-ring, Korean banana, Thai chicken-and-chile, etc.
5.  7-Eleven customers got to choose red or blue coffee cups to show their vote for Democrat or Republican during election time.
6.  Supercuts enlisted musicians in cities across the U.S. to talk about Supercuts on their social media accounts, reaching a total of more than 6.5 million fans.
7.  At Red Mango's facebook page, customers can suggest different flavors.
For full article, read p.132 of Entrepreneur, Jan 2013.