269: How Rowan Grew His Pinterest Following to More Than 300,000 in Two Months How a Blogger Uses Pinterest to Boost His Following Welcome to the final episode of our Blogger Breakthroughs series. Today we share a story from Rowan Sims, Digital Photography School writer and ProBlogger podcast listener.   Rowan's also a landscape and travel photographer who uses his blog to teach readers how to improve their photography,…