The World Images Kiosk hosted by San Jose State University offers more than 75,000 images that teachers and students can use in their academic projects. All of the images can be used under a Creative Commons license that requires you to give proper attribution when necessary. You can find images by using the search box or you can browse through more than 800 portfolios and groups organized by subject.

Applications for Education
Finding images that your students can use for their digital presentations can be difficult. A resource like the World Images Kiosk can be a valuable resource as you will know that they can use any image they find in the collection. The images could be used to start a VoiceThread conversation, used in an Animoto video, or used in slide presentation.

Here are some related resources that may be of interest to you:
Photos 8 – Thousands of Public Domain Images
Creative Commons Animal Photos
Copyright for Educators