SOD's Documentation
Tutorials
The tutorials walk through several aspects of SOD's operation. This is a good place to start to get a better feel of the way to get SOD to do what you want.
Deeper Considerations
The realtime considerations document explains what changes need to be made to your recipe for it to be a standing order.
Legacy considerations shows how SOD can execute arbitrary processes with the data it collects
Ingredients
The ingredient listing contains all the tags that can go into a SOD recipe. It shows where each piece goes and what it means. This is the place to look to find if you want to see what a particular tag does, how tags should be laid out, and if you're experiencing validation errors