IT Risk Management Material

Answer: IT Risk Management goes well beyond information security risks, so besides the material you already mentioned, I'd recommend you to take a look at our 20000Academy, which focus on ISO 20000 and ITIL content. Some material you will find there, are:
- ITIL Risk response measures and recovery options from catastrophic events https://advisera.com/20000academy/blog/2015/09/22/itil-risk-response-measures-and-recovery-options-from-catastrophic-events/
- Risk Assessment and Treatment (template) https://advisera.com/20000academy/documentation/risk-assessment-and-treatment/
- IT Service Continuity Management (ITSCM) Process https://advisera.com/20000academy/documentation/it-service-continuity-management-process-iso-20000/ process/

Regarding ISO standards, I'd recommend ISO 31000 (Risk management) and ISO 31010 ( Risk management — Risk assessment techniques). These will provide you a wider view of risk management that can help you with IT risks not necessarily related to information security.

These articles will provide you further explanation about ISO 31000 and ISO 31010:
- ISO 31000 and ISO 27001 – How are they related? https://advisera.com/27001academy/blog/2014/03/31/iso-31000-and-iso-27001-how-are-they-related/
- ISO 31010: What to use instead of the asset-based approach for ISO 27001 risk identification https://advisera.com/27001academy/blog/2016/04/04/iso-31010-what-to-use-instead-of-the-asset-based-approach-for-iso-27001-risk-identification/