Tough Mudder uses Facebook as its primary marketing channel. It has nearly 3 million Facebook likes and saw a 24x increase in sales over 2 years. 20% of survey respondents said they signed up due to Facebook ads. Smoothie King has over 45,000 Facebook fans and uses the platform to drive people to its website and increase brand awareness through customer testimonials and contests. Both companies successfully leverage Facebook for marketing, promotions, and engagement.