#1: Awesome Node.js
Volt is a Ruby Web framework where Ruby code runs on both the server and the client. Volt’s DOM automatically update as the user interacts with the page, with the HTML is written in a handlebars-like template language. Instead of syncing data between the client and server via HTTP, Volt uses a persistent connection.
Pup is a command-line tool for processing HTML. It reads from stdin, prints to stdout, and allows the user to filter parts of the page using CSS selectors. Inspired by the jq JSON command-line tool, and developed by Eric Chiang, Pup aims to be a fast and flexible way of exploring HTML from the terminal.