SoundDogs.com – Hundreds of thousands of sound files. You need a particular, specific, sound effect? some Royalty Free Music? Samples and Loops? Vocals ? chances are you’ll find it here. Searchable by category, very handy.
Findsounds – Another fantastic audio finding resource… it’s kind of like Google for sound files, and nothing but sound files. This place has saved me from headaches and hassles dozens of times.
Brickfilms Sound Library – A Community built resource, The Brickfilms Sound Library, where you can find sound effects and music to use in your films. This collection has been brought together by community members with great care to ensure top quality. Perhaps most importantly, these sounds can be used in your films for free
Soundstorm Sound effects library – Here you can explore and purchase from a selection of sound effects from Soundstorm, the award winning sound editorial house
Bargus Sound Library – An online sound library specifically catering for film. Bargus also offers a service which allows other filmmakers to request sound clips to be recorded for free and added to the sound library, they can then download the clips and use them in their films.
Chris Worth Productions – This Royalty Free collection features dozens of good, though notably expensive, musical tracks, compilations, and loops. They also take custom music commissions for any project in any musical style or format.
Stop Motion Pro Audio Library – Free sound tracks for you to use in your own animation productions.