Here are some interesting links I found while doing research on Moai:
General set of Moai tutorials to cover display, handling input – You should definitely go through these to get an idea of how the basics work.
Moai SDK Documentation – This covers the classes and functions that are defined on them. Note that the documentation here is incomplete – there are some classes that don’t show anything. There is enough that this is still useful though.
Moai Code Snippits – Some utility functions that are nice to know about.
Tools that work with Moai – Links to various programs that you can use with Moai (IDE’s, drawing programs, etc)
More Moai Code Snippits – A place where people dump code snippits. More sippits than the other link, but this website is sometimes down because it goes over its host’s limit.
Moai Forums – Official Moai forums, where a lot of questions get answered.
Here are some other tutorials that might be a good reference: