Please refer to the new site :-
http://www.sap-basis-abap.com/whatsap.htm

The name SAP a German company is an acronym for "Systeme, Anwendungen, Produkte in der Datenverarbeitung."  This is translated in English as "Systems, Applications, and Products in Data Processing."

SAP Reports Basics
Report command field formats
Helpful reports

SAP Shortcuts
Shortcut keystroke to enter TODAYS DATE

SAP Info Structure
Meaning of info structures' first letter

SAP Transport
Unconditional mode when importing or exporting a request/transport

SAP General
Scheduling of system maintenance jobs
Before going live
Locking the whole system
SAP 3.x to 4.x
Download SAPGUI 610 Patches
Session take over Disabled