Web

• Frontend checklist

• Shower, HTML presentation engine

• Web Fundamentals by Google

• Mozilla WebThings an open platform for monitoring and controlling devices over the web.

JAMstack

• Serverless
• Zero Server
• Hoodie is a free and Open Source Software for building applications for the web and iOS. It is a complete backend for your apps, ready for you to get creative. It works immediately out-of-the-box: develop your frontend code, plug it into Hoodie’s frontend-friendly API and your app is ready.
• headlessCMS, a list of content management systems for JAMstack sites.
• StaticGen, a list of static site generators for JAMstack sites.

Cookies

Web 3.0

• Web3 Summit 2018 videos
• Join the indieweb movement.
• Filecoin, IPFS
• Steem, DTube
• Hashbase, Keybase
• Solid, inrupt
• Zcoin
• Dat, Beaker browser and company

Accesibility

Learn about accessibility.

• The A11Y Project has a really nice checklist of accessibility considerations.

Web components

Learn about web components.

WebExtensions API

• Awesome WebExtensions has a healthy collection of resources. Of all the links listed, my favorites would be:

  • web-ext, Mozilla's CLI tool for add-on development,
  • generator-web-extension, a Yeoman generator to get your add-on started,
  • webextension-toolbox, a small CLI toolbox for creating cross-browser Web Extensions, and
  • wext-shipit, another CLI tool to automate the process of shipping Web Extensions for Chrome, Firefox, Safari, Opera and Edge.