The Product Management Team of Oracle Enterprise Manager just published on OTN a monitoring white paper "Strategies for Scalable, Smarter Monitoring using Oracle Enterprise Manager 12c Cloud Control".
It's meant to provide guidance/best practices to customers who would like to use the EM12c monitoring features -- admin groups, template collections, monitoring templates, incident rules, incident manager.
Looks like a great white paper and will fill a gap in the monitoring space.
Regards,
Porus.