One way to utilize Pinterest for sales is to use different social media platforms to promote your pins. For example, you can tweet a link to a pin or post it on Facebook.
Must like the other social media platforms, you can offer sales to Pinterest followers, as well as run contests. In the following image from Pinterest, shoe brand Chinese Laundry is running a contest on its Contests and Giveaway boards. To enter, users must follow the company on Pinterest and re-pin an image of shoes.