Posteo - Web- and IMAP-based email service. 2GB cost 1€/month.
code-prettify - Code Prettify is an embeddable script that makes source-code snippets in HTML prettier.
Inbox.lv - Inbox.lv Mail
Minify - Minify is an online CSS and JavaScript minifier.
Webmail.ca.za - Free email, file storage, sms and more.
highlight.js - Highlight.js is a syntax highlighter written in JavaScript. It works in the browser as well as on the server.