Noizer - Ambient sounds like Noisli, but free
Roundio - Explore what people posted to Instagram or Flickr near you
Defonic - Create a unique sound environment at home or in the office
Herefeed - See what's hot near you. Powered by Instagram.
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.
Tagwin - Instagram contests & giveaways made easy