Bloggers are advised to use social media to promote their blogs and gain new followers in how-to books such as “Blogging All-in-One For Dummies,” author Susan Gunelius. On a traditional social network, that might involve sharing your posts and engaging readers in discussions. The popular social photo-sharing site, Pinterest, takes a different approach to networking; here, images rule the day and conversation -- limited to comments attached to pins -- is secondary. A "pin" is the Pinterest name for a piece of content you share on its corkboard-metaphor site. Each pin is an image that links back to its original site. All pins appear in a public feed, where users browsing the site can find them and repin them, in turns exposing the pins to the people who follow that pinner. You can take advantage of Pinterest, the third most popular social network according to a 2012 Experian Market Research study, to increase visitors to your blog.