HANA Acadmy: https://www.youtube.com/user/saphanaacademy
HANA Ramp-up knowledge transfer: https://websmp210.sap-ag.de/support
HANA SAP HELP: SAP HANA Platform – SAP Help Portal Page
HANA Core-Team wiki: https://wiki.wdf.sap.corp/wiki/display/ngdb/HANA-Core-Teams