General SAP links:

• SAP help
• SAP service marketplace
• SAP community network (old SDN)
• SAP education
• Building block library
• SAP shop
• SAP user groups
• PLM/EAM solution maps
• PLM overview
• SAP trust centre services (single sign-on)
• SAP demos

ABAP development:

• ERP solution browser (release notes)
• ABAP Code examples: 1, 2, 3, 4,
• Funny ABAP comments
• GUI updates

SAP Forums:

• SAP user groups
• SAP business community (EAM)
• SAPFans forum
• Sapfans.org
• ERP Genie
• Uber Goober