Edit+StoryMedia

Multiple Media Types

 * Ourmedia http://ourmedia.org/ 1287818065
 * Public Domain Review http://publicdomainreview.org/collections/ 1405706112
 * Wikimedia Commons http://commons.wikimedia.org/ 1287818065
 * Get Media http://www.spinxpress.com/getmedia 1287818065

Images

 * [|4FreePhotos] - A collection of public domain images in multiple categories. 1287818065
 * Art Images for College Teaching - a personal, non-profit project of its author, art historian and visual resources curator http://arthist.cla.umn.edu/aict/ 1287818065
 * BioMed Image Archive - medical, dental, and veterinary images for use in learning http://www.brisbio.ac.uk/ 1287818065
 * [|Besplatne slike] Several thousand copyright friendly, public domain images organized in categories. All photos are free for any personal and/or commercial use, credit or back link is not required. 1287818065
 * Creativity 103 abstract images, patterns, textures http://creativity103.com/ 1406173987
 * Culturally Authentic Pictorial Lexicon (CAPL) http://capl.washjeff.edu/ 1325609126
 * EduPic Graphical Resources for Educators http://www.edupic.net/ 1287818065
 * Everystockphoto - search form multiple sources http://www.everystockphoto.com/ 1287818065
 * foter - free creative commons licensed images http://foter.com/ 1378740979
 * Free Digital Photos http://www.freedigitalphotos.net/ 1287818065
 * Free Images - 2500 free stock images http://www.freeimages.co.uk/ 1287818065
 * FreeFoto - over 100,000 images free for online use http://www.freefoto.com/ 1287818065
 * FreePhoroBank - creative commons licensed photos searchable and organized into categories http://www.freephotobank.org/ 1287818065
 * FreeStockPhotos http://freestockphotos.com/ 1287818065
 * Getty Get Art- thousands of public domain art images made available from for reuse http://www.getty.edu/art/ 1376334304
 * Great Images In NASA http://grin.hq.nasa.gov/ 1287818065
 * Gratisography Creative Commons licensed high resolution photod http://www.gratisography.com/ 1406173987
 * Image*After - almost 20,000 pictures and textures http://www.imageafter.com/ 1287818065
 * ImageBase free photos http://imagebase.net/
 * Internet Pathology Lab for Education - medical images & diagrams http://www-medlib.med.utah.edu/WebPath/webpath.html 1287818065
 * morgueFiles - photos "freely contributed by many artists to be used in creative projects" [|http://www.morguefile.com] 1287818065
 * Open Photo Project - cc licensed photos http://openphoto.net/ 1287818065
 * PDphoto public domain photos http://pdphoto.org/ 1287818065
 * Picjumbo http://picjumbo.com/ 1406173987
 * Pixel Perfect Digital 5000+ user contributed images http://www.pixelperfectdigital.com/free_stock_photos/ 1287818065
 * NOAA Photo Library - weather images [] 1287818065
 * Pictures from Old Books http://fromoldbooks.org/ 1287818065
 * PicFinder - search multiple sources for royalty free photos http://www.picfindr.com/ 1287818065
 * Pixabay - search for public domain / open licensed high quality photos and images http://pixabay.com/ 1375824387
 * Pics4Learning educational images http://www.pics4learning.com/ 1287818065
 * Public Domain Images - Several thousand copyright friendly images nicely organized in categories, free for any personal and/or commercial use, credit or back link is not required. http://www.public-domain-image.com 1287818065
 * Public Health Image Library (PHIL) http://phil.cdc.gov/ 1287818065
 * Sketchory http://sketchory.com/ 1287818065
 * stock.xching - over 250,000 free stock photos http://www.sxc.hu/ 1287818065
 * Totally Free Images - public domain, no copyright, no attribution required http://totallyfreeimages.com/
 * Unsplash high resolution photos, 10 new ones added every 10 days http://unsplash.com/ 1406173987
 * US Government Photos and Images http://www.usa.gov/Topics/Graphics.shtml 1287818065
 * Wellcome Images http://wellcomeimages.org/ 1407961788
 * Woophy - find images via map http://www.woophy.com/ 1287818065
 * World Images - 50,000+ images free for education, non-profit use http://worldart.sjsu.edu/ 1287818065
 * YotoPhoto - searches public domain and cc licensed photo collections http://yotophoto.com/ 1287818065
 * Youraustralia - cc licensed landscape images http://www.youraustralia.eu/ 1287818065

Audio

 * ArtistServer free downloads of independent band music [] 1287818065
 * ccMixter - remixes of cc licensed music http://www.ccmixter.org/ 1287818065
 * Free Music Archive - library of high quality copyright cleared music curated by WFMU http://freemusicarchive.org/ 1287818065
 * Free Music Project - free music of all genres http://freemusic.freeculture.org/ 1287818065
 * Funky Remixes "music found on this website is funky and free... a sweet collection of upbeat hip-hop, rap/rock, electronic and funky styled remixes." http://funkyremixes.com/ 1287818065
 * Internet Archive http://www.archive.org/details/audio 1287818065
 * Jamendo more than 10,000 albums of free, cc licensed music http://www.jamendo.com/ 1287818065
 * Macauley Library - Cornell University's archive of natural sounds (video too) http://macaulaylibrary.org/ 1358976895
 * Musopen - copyright free music (and sheet music) http://www.musopen.org/ 1290033387
 * Podsafe Audio "a location where musicians can upload music under the Creative Commons license for use in Podcasts, Mashups, Shoutcasts, Webcasts and every other kind of 'casting' that exists on the 'net." http://www.podsafeaudio.com/ 1287818065
 * Opsound - cc licensed music http://www.opsound.org/opsound.html 1287818065
 * pdsounds environmental sound archive http://www.pdsounds.org/ 1287818065
 * Public Domain Music http://www.pdinfo.com/ 1287818065
 * Purple Planet http://www.purple-planet.com/ (mentioned by @brendasherry)
 * SoundTransit - creative commons licensed field recordings http://soundtransit.nl/search/ 1287818065

Video

 * Entertainment Magazine's Free Movies http://emol.org/movies/freemovielist.html 1287818065
 * Free Public Domain Movies http://imovies.blogspot.com/ 1287818065
 * Internet Archive http://www.archive.org/details/movies 1287818065
 * National Archives http://video.google.com/nara.html 1287818065
 * Open Video Project http://open-video.org/ 1287818065
 * Open Source Cinema http://www.opensourcecinema.org/ 1287818065
 * Public Domain Comedy Videos http://www.pdcomedy.com/ 1287818065
 * revver http://revver.com/ 1287818065
 * vimeo creative commons tagged videos http://www.vimeo.com/tag:creativecommons 1287818065
 * WGBH Sandbox http://streams.wgbh.org/sandbox/ 1287818065
 * WikiMedia Commons http://commons.wikimedia.org/wiki/Category:Video 1287818065

Make Your Own Media
The other viable option is to generate your own media via methods like scanning photos and objects, using your own digital cameras, video records, and mobile phone cameras. One of the best audio tools you can use to record and edit on your computer is a free open source tool-- [|Audacity]. In addition, these web-based tools may be useful as media editors or converters.
 * AudioExpert is a free and simple online audio editor, file converter and sound recorder. http://www.audioexpert.com/ 1287818065
 * Big Huge Labs offers a wide array of tools to create different image effects from flickr photos http://bighugelabs.com/ 1287818065
 * Cameroid can be used to create silly and fun self portraits with your computer's webcam http://www.cameroid.com/ 1287818065
 * Convert.files is used to convert files you upload to other formats http://www.convertfiles.com/ 1287818065
 * Silly Webcam lists huge number of sites you can use to create images and effects via your webcam http://www.sillywebcam.com/ 1287818065
 * Zamzar helps you convert files form one format to another http://www.zamzar.com