Creative Commons is a nonprofit organization that develops, supports, and stewards legal and technical infrastructure that maximizes digital creativity, sharing, and innovation.
Freesound aims to create a huge collaborative database of audio snippets, samples, recordings, bleeps, ... released under Creative Commons licenses that allow their reuse. Freesound provides new and interesting ways of accessing these samples, allowing users to:
* browse the sounds in new ways using keywords, a "sounds-like" type of browsing and more* upload and download sounds to and from the database, under the same creative commons license* interact with fellow sound-artists!
Opsound is a gift economy in action, an experiment in applying the model of free software to music. Musicians and sound artists are invited to add their work to the Opsound pool using a copyleft license developed by Creative Commons. Listeners are invited to download, share, remix, and reimagine.
ccMixter is a community music site featuring remixes licensed under Creative Commons where you can listen to, sample, mash-up, or interact with music in whatever way you want.
Yunyu releases her music with a Creative commons license (no commercial use / attribute / share like). This means as long as you don't use it commercially it's safe to fileshare, use in podcasts and student or amateur films.
The key goals of The Commons on Flickr are to firstly show you hidden treasures in the world's public photography archives, and secondly to show how your input and knowledge can help make these collections even richer. The commons includes licensing information for the photos.