Freesound aims to create a huge collaborative database of audio snippets, samples, recordings, and all sorts of 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!