Pinterest is a social media site which allows users to 'curate' their own pin board of images. My own Pinterest board has a series of other boards representing projects that I have worked on, or particular interests. You can click on the boards I follow to uncover other useful accounts, and then follow the trails where they lead. You are guaranteed to find a range of interesting, useful and amusing images that could be added to your gallery of images for classroom use.
Level: Cross-phase
Cost: Free