Pinterest is a great tool to help with customer service, and an amazing visual aide that you can use to support products. If your customers are interested in knowing what a specific product can be used for, direct them towards your pinterest page which lists ideas for specific products. I have several boards pinned already with several ideas for some of our most popular products. All you have to do is repin the pictures to your own page and you will be well on your way to providing unique customer service!
If you are going to use Pinterest (or facebook for that matter) as a business tool, then you need to keep your boards clean.
No foul language
No controversial issues
Shy away from politics and religion. I realize that your political views and religious views are important to you, as they are to me, but the fact of the matter is that these two topics will offend a potential customer or host faster than anything else. You don't want to lose a potential host or recruit just because you voted for someone else!
Keep your posts light and happy, people want to work with those who make them feel good.