Photos for Class is a new service designed to help students and teachers find and cite Creative Commons-licensed images. The site utilizes Flickr's API to find images that match your search terms. When you find an image that you want to use, click the download link just below the image. The downloaded image will have the attribution information added to it. See the screenshot below for an example.
Applications for Education
I always advocate for students to use their own pictures or public domain pictures in their projects. That said, it's not always possible to take a picture or find a public domain picture that is appropriate for a project. In those cases, a search for Creative Commons-licensed images through a tool like Photos for Class is a good tool for students to use.
Disclosure: Photos for Class is owned by Storyboard That. Storyboard That is an advertiser on FreeTech4Teachers.com