sw-toolbox : A collection of service worker tools for offlining runtime requests
Workbox : JavaScript Libraries for adding offline support to web apps.
sw-precache : Service Worker Precache is a module for generating a service worker that precaches resources. The module can be used in JavaScript-based build scripts...
High Performance Browser Networking : Performance is a feature. This book provides a hands-on overview of what every web developer needs to know about the various types of networks (WiFi, ...
Stack Overflow : Stack Overflow is a question and answer site for professional and enthusiast programmers.
The Service Worker Cookbook is a collection of working, practical examples of using service workers in modern web apps.