Pinterest is a bookmarking site for images that allows users to create boards around different themes and add images to those boards by pinning them. The site currently has 12 million users, which is smaller than other social networks like Facebook, Twitter, and LinkedIn. Users can follow boards, repin images to their own boards, comment on pins, and like pins. Boards can also be shared with multiple users who can all add pins. Pins can also be shared on Facebook and Twitter. The site may be useful for projects that involve sharing lots of images, video, facts for infographics, or partnering with other websites.