With the new upcoming Helsinki release which will introduce ServicePortal, I have decided to change the name of this site and focus primarily on the new Service Portal.
In the near future I will be working on many new tutorials and step by step introductions on how to build portals and custom widgets using Service Portal. Stay tuned!
Founder of 
Hello Nathan, would you be able to provide a list of prerequisites needed to successfully become a portal designer within SN…
Sure: HTML5, CSS (compiled CSS e.g. SCSS or LESS), JavaScript (Angular.js), and ServiceNow server side scripting. Anyone familiar with standard web development technologies should do just fine.