Homepage for SAP Professionals
The one-stop-shop for SAP related information.

SAP ABAP tutorials faq interview questions example
SAP ABAP tutorials online training free material faqs interview questions in reports scripts alv ale edi idoc badi bapi user exits enhancements bdc conversions etc..

SAP Network Group on LinkedIn
This is a group on Linkedin for SAP professionals

SAP R/3 Links
German linksite containing links about the following topics: administration, development, SAP Module (FI,SD,MM,HR,etc), architecture, books, etc

SAP Tips on Configuration and ABAP/4
Configuration modules on Material Management, Production Planning, Sales and Distribution,Financial, Controlling and Basis Components as well as ABAP/4 Programming.

SapLinks.net
SapLinks.net: providing news, analysis and links to SAP resources for customers and professionals and providing a community forum, newsletter, sapwiki and much more...