Pinterest, the virtual pinboard that combines aspects of Facebook, Tumblr, and Etsy, has attracted more than 10 million users with its “shopping and blogging” interface. Now, it can be added to your Facebook timeline with just a few steps. First, go to pinterest.com and click on your profile photo. Then find the section entitled Facebook and switch on "Visibility." Once you go back to Facebook, you’ll be prompted to save your changed settings. And, voila! You’ll have Pinterest news displayed all over your timeline.