Every Stock Photo. Every Stock Photo is a search engine for public domain and Creative Commons licensed pictures. When you search on Every Stock Photo it pulls images from dozens of sources across the web. If you click on an image in your search results you will be taken to a larger version of the image, a link to the source, and the attribution requirements for using that picture.
Applications for Education
Often when students are told that they need to use Creative Commons or Public Domain images they moan about it because they only think of Google when they search for images. Every Stock Photo is a fantastic alternative to using Google Images to look for Creative Commons and Public Domain images.