General Content

Open clip art and photo repositories


 * WPClipart
 * Clip art
 * High quality; easy to search
 * Open Clip Art Library
 * Clip art
 * Bigger collection; more variation in quality
 * Flickr
 * Wide variety of photos, including many places and people
 * If you do a search, use the Advanced search option and check the box at the bottom to only search CC licensed photos.
 * Wikipedia
 * The vast majority of images in Wikipedia are open-licensed.
 * Click the image to find license and source
 * Especially good for historical or academic topics
 * The Open Photo Project
 * Smaller collection of high quality photos
 * Image*After
 * Smaller collection of high quality photos
 * Watch for Dreamstime images in search results; these are ads for commercial photos.
 * morgueFile
 * Smaller collection of high quality photos
 * Stock.XCHNG
 * Smaller collection of high quality photos
 * Wikimedia Commons
 * This is the image collection that Wikipedia draws from.
 * Also include images and video

Open music and sound effect repositories

Open video repositories
 * The Freesound Project
 * Sound effects of every type imaginable
 * You must be registered and logged in to download. (It's free.)
 * Searching by tag on the left is the easiest way to find things.
 * Click a sound you like, and you'll get a download link. (Remember you have to be logged in.)
 * MusOpen
 * Mostly classical and acoustic music
 * Click Music and Browse Music to find something you like.
 * ccMixter
 * Mostly contemporary music; a small number are marked "Not safe for work," generally for adult language.
 * To find music, go to "Find Music" on the left side bar. Then try the Tag Cloud.
 * After choosing a genre, you'll get many choices. Each has a download link you can use when you've chosen one.
 * Make sure to record the source.
 * Wikimedia Commons music
 * Variety, but mostly classical; also has videos
 * Good collection, but the file format is ogg, which most programs don't support. (Use Zamzar or YouConvertIt to convert if necessary.)


 * Teacher's Domain
 * Good collection, register and do an advanced search for open-licensed material
 * Khan Academy (non-YouTube version available here or here)
 * Math movies, mostly secondary
 * Karl Fisch's algebra movies (downloadable versions here)
 * High school algebra
 * K12 Open Ed movies
 * Includes middle school math and preK-2 - literacy