Web API growing pains: Loosely coupled yet strongly tied
An interview with six professional developers to ask them about their experiences with web APIs that evolved. A study into the evolution policies of four high-profile web APIs (Google Maps, Twitter, Facebook and Netflix). An investigation of ten open source clients integrating the aforementioned four web APIs to see the impact of web API evolution on source code. A list of eight recommendations for developers of web APIs and client applications integrating web APIs. A study on the code impact on both server and client-side code for both VirtualBox and XBMC.
web api software evolution breaking changes