Here I am listing some interesting links for SAP Training .
SAP Training & Certification Shop
There is a catalogue of SAP courses, all of them for a fee.
https://training.sap.com
openSAP
Free courses on SAP new products, offered by SAP.
https://open.sap.com
Free Courses on Academy Cube
Free courses offered from the Academy Cube network.
http://www.academy-cube.eu/topic/free-courses/
SAP Help
Help on all the available SAP products. It also explain SAP concepts and processes.
http://help.sap.com
SAP Community Network Wiki
SCN Wiki
http://wiki.scn.sap.com
We can learn SAP free of cost from the URL Link that is from openSAP and SAP Training & Certification Shop.