Figure - Propellerhead creates world-class software products and services that inspire music makers and provide the foundation for a worldwide creative musical community.
Freesound - The Freesound Project is a collaborative database of Creative Commons licensed sounds.
keezy - A colorful soundboard. Play with music.
Sample Focus - The easiest way to find the perfect audio sample
Splice - Music creation, collaboration, and sharing made simple.
Moody sampler - A cloud connected audio sampler, including 1000+ instruments