Since you already know how to use Pinterest for marketing, now you’re probably craving some inspirational real-life examples of brands using it effectively. Many businesses have recently discovered that, not only is Pinterest another way to engage with fans and customers without spending advertising dollars, but it’s also a great way to impact purchases, especially when it comes to impulse buying. Data from Monetate shows that referral traffic from Pinterest to the websites of five specialty apparel retailers jumped 389% from July-December 2011.