SAP Implementation / Transaction Codes

http://en.wikipedia.org/wiki/SAP_Implementation
www.saptransactioncodes.com/

SAP Worldwide / Lot of Material

http://www.sap.com/contactsap/countries/index.epx

Authorized training Centers of SAP in India

http://www.genovate.com/
http://www.delphicomputech.com/
http://www.vc-erp.com
http://www.thebostongroup.com
BITECH and Cognizant Technology Solutions India Pvt Ltd.Students contact for queries education.india@sap.com

http://www.siemens.com/

SAP Career / Jobs

http://sapcareers.com/
http://www.sap.com/careers/index.epx
http://www.erpgenie.com/
http://www.thespot4sap.com/Jobs/Job_Search.asp
Freshers
http://www.yuvajobs.com/search_result.asp?category=In+All+Categories&exp=0&keyword=SAP

Tutorial

http://www.freesaptutorials.com/
http://www.saponlinetutorials.com/

All the SAP Online Help in PDFs / E- Books

http://www.easymarketplace.de/online-pdfs.php
http://www.sapdb.info/category/sap-ebooks/

SAP Library

http://www.sap.com/index.epx
http://help.sap.com/saphelp_46c/helpdata/en/e1/8e51341a06084de10000009b38f83b/frameset.htm

SAP Community Network

https://www.sdn.sap.com/irj/sdn

SAP

http://en.wikipedia.org/wiki/SAP
http://sap.ittoolbox.com/
http://www.sap.info/