code-prettify - Code Prettify is an embeddable script that makes source-code snippets in HTML prettier.
Blockbutler - Real-time transaction notifications for the blockchain
Minify - Minify is an online CSS and JavaScript minifier.
Pushover - Real-time notifications on your Android, iPhone, iPad, and Desktop
highlight.js - Highlight.js is a syntax highlighter written in JavaScript. It works in the browser as well as on the server.
Instapush - Instant notifications for transactions that matter.