What are all the resources that can be associated with a security group in AWS?

The AWS docs are almost useless when trying to describe an entire system. Is there any resource or compiled list of all the resources that can belong to a security group and the different types of security groups?

Here is what I have so far:

• EC2-Classic instance


• EC2-VPC instance


• RDS


• ElasticCache

Anything else I'm missing? Any really good doc resource I'm missing?