Other resources

A youtube play-list with videos and screen capturing from a full-day webgme seminar in May 2015. The target audience for the seminar were people with some previous knowledge of meta-modeling.
Wiki pages
This is the primary documentation hub for webgme. It is target towards people who already are using webgme and are trying to look-up more details about a certain area or extension point of webgme. Some of the pages there will be link to from this tutorial.
Source code documentation
The API documentation generated from the jsdoc inside the webgme source code. This documentation is served from every webgme deployment. Once you’re at the point of having your webgme-server running, you should be able to access the API docs for your currently running version at <host>/docs/source/index.html.

Sections of these will be referenced throughout the tutorial.