Like many, I was hesitant about joining Pinterest, particularly before the recent copyright changes. Though I dug the concept, it sounded like a time-sucker and more fun than vital. When I learned that it’s the fastest growing social media platform, a top referrer to retailers and appeals particularly to educated women, I figured it was time to research my brains out look into it. I’m so glad I did.

Pinterest is now the third most popular social network, according to a new Experian study, behind Facebook and Twitter. And retailers are not the only beneficiaries. Crystal Underwood’s tips-for-mommas blog leapt from 100 hits per day to up to 7000 after she embraced the virtual pin boards. Design blogger Jessica Colaluca, one of Mashable’s “21 Must-Follow Pinterest Users,” credits Pinterest for 35 percent of her estimated one million-plus monthly hits. And major publications, including Elle magazine, Martha Stewart Living and Cooking…