Defonic - Create a unique sound environment at home or in the office

Krugle - Krugle is the complete enterprise solution for search targeted to the development organization. 

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.

searchcode - A source code search engine

Noizio - Feeling that the noise of the big city is too much for you to bear?

Insight.io - Best web-based IDE-like source code browsing and search tool