- http://www.theatlantic.com/health/archive/2012/06/study-of-the-day-why-crowded-coffee-shops-fire-up-your-creativity/258742/
- http://lifehacker.com/5365012/the-best-sounds-for-getting-work-done
- http://www.mdpi.com/1660-4601/7/3/1036
- http://www.apartmenttherapy.com/sleep-better-the-science-of-sound-machines-168208
- https://twitter.com/rishim3
- https://twitter.com/_josephdecker
- http://www.josephdecker.com/
- https://twitter.com/daniellinp
- http://www.daniel-lin.net
- https://twitter.com/nsoohoo
- https://soundcloud.com/
- https://twitter.com/intent/tweet?url=http%3A%2F%2Fsoundrown.com&text=relax.+focus.+escape.&via=soundrown
- https://docs.google.com/spreadsheet/viewform?formkey=dFdqd3VUQnZXSFFMZFYyTWl5NFUtWVE6MQ
