Tutorials for Code Night and the Week of Code can be found at one of the following:
Code.org - Tutorials in support of the Week of Code.
hourofcode.com - Student and teacher portal for the global programming challenge. Allows your student to log in and for teachers to monitor progress, as well as keeping track of how many hours students are the world work on the project.
Scratch - An MIT online block programming site, allowing kids to do more advanced projects and games with the block-oriented programming concepts they have learned during Code Night.
https://blockly-games.appspot.com — A visual programming editor pioneered by Google
http://www.tynker.com — A similar visual editor
http://www.girlswhocode.com/ — Focused on encouraging girls to code
And for more advanced programmers:
https://jsfiddle.net/ — A site allowing experimentation with the mix of tools that make up web pages