System Recommendations provides a detailed recommendation of ABAP and non-ABAP SAP Notes which should be implemented, based on the actual status of the system and already implemented SAP Notes.
SAP Security Notes
HotNews
Performance-Relevant Notes
Legal Change Notes
Correction Notes (deactivated by default)
System Recommendations on Help Portal
(SAP Solution Manager 7.2)
Usage, configuration and customizing of System Recommendations
(SAP Solution Manager 7.2 including description of the new status management which is available as of SP 7 )
System Recommendations Community Blog
(SAP Solution Manager 7.1)
SAP Security Optimization Services - provide best practices for the security of your SAP system landscape
Security Patch Process - Implementing SAP Security Notes: Tools and Best Practices
Security Patch Process FAQ - including best-practice about using System Recommendations