Here's a clever use of Pinterest as the new social media phenomenon's following increases. In Panama, Peugeot is running a Pinterest-based competition to encourage followers on the site. On its Pinterest page are various puzzles depicting different car models, with pieces missing. People can search for and find pieces at the Peugeot Panama Facebook page or website, pin them on their own boards and share it with Peugeot. The first five people to complete their boards win prizes.