What is a Resource?
The "Resource" system is tied to the Permissions structure. What this means is that you get granular control on a resource level and can create groups around a single resource or even groups of resources.
How Do you Use Them?
The Resource is the entity that users can assign Network Resources to (IP blocks, hosts, DNS zones, etc.). You can also create hierarchies between resources which allows you to leverage permissions to control who can view and interact with any given resource and its assigned elements.
Can You Customize Them?
Yes - talk about customizable fields - show it in video tutorial
How to Work with Resources
Type/Category Entry - show modification and where to find in video
Some examples:
1) Service Provider
2) Managed Service Provider
3) Datacenter/Colocation Provider
4) Enterprise