Great Articles Web Components The four Web Component standards HTML Templates Shadow DOM Custom Elements HTML Imports Great Blogs HTML Imports HTML's New Template Tag Shadow DOM v1: Self-Contained Web Components Custom Elements v1: Reusable Web Components Google Developers Web Fundamentals Web Updates Mozilla developer MDN: HTTP SitePoint SitePoint: JavaScript SitePoint: HTML-CSS SitePoint: WEB Security XSS (Cross Site Scripting) Prevention Cheat Sheet Which characters need to be escaped on HTML? Using character escapes in markup and CSS