ABAP Central - Information, help, source code, tutorialsAbapers.com - The online resource for ABAP professionals world wide.
ABAP Hints and Tips - For ABAP/4 programmers to find hints and tips on programming with SAP's ABAP, useful function modules, source code, and more.
ABAP OO Information - Useful ABAP OO Information is "hidden" on this personal homepage
The SapFaq [Membership required] - Email-based peer-to-peer technical support from experienced SAP professionals. Home of the original MIT-sponsored SAP-R3-L Technical Support Forum. FREE to qualified professionals.
ABAP Source - Information about programming in ABAP/4 and SAP technical documentation.
CT-Software - Searchable ABAP Freeware Pool
