Pinterest has joined Instagram, Twitter and Facebook in the world of direct messaging. Users can now send direct messages to one another - share pins, boards and even group chat. Why should you as a marketer care? Contests: If you've ever tried to run a contest directly on Pinterest you've no doubt found some struggles trying to contact winners. Outside of tagging them and hoping they see the notification you didn't have a great way of getting in touch. Direct messaging solves this.

Customer Service: The new messaging service provides businesses with an opportunity to handle customer service (questions, complaints, ideas) in a more private manner.

Increased "Word of Mouth": It's now easier for users to recommend your product, recipe, design to their network of friends.

What other uses do you see for Pinterest Messaging?