Technology Radar: An opinionated guide to technology frontiers from Thoughtworks [pdf]
thoughtworks.com
thoughtworks.com
Techniques - https://www.thoughtworks.com/radar/techniques
Tools - https://www.thoughtworks.com/radar/tools
Platforms - https://www.thoughtworks.com/radar/platforms
Languages & Frameworks - https://www.thoughtworks.com/radar/languages-and-frameworks