Roundio - Explore what people posted to Instagram or Flickr near you
Noisli - Noisli is a fantastic background noise and color generator for working and relaxing. Online soothing ambient sounds like White noise, Rain and Coffee Shop.
Public - Group chats.
Noizio - Feeling that the noise of the big city is too much for you to bear?
Chalk - Chalk is a calculator that tries to do right what others do wrong.
zenmix.io - Ambient background sound generator