meSing.js : meSing.js is a JavaScript singing synthesis library that uses the Web Audio API's DSP capabilities in conjunction with the meSpeak.js speech synthesis...
Feather : Feather is a collection of simple open source icons. Each icon is designed on a 24x24 grid with an emphasis on simplicity, consistency and readability...
sfxr : A tool to quickly generate 8bit/16 bit-soud effects!
Freesound is a collaborative database of Creative Commons Licensed sounds. Browse, download and share sounds.