Question:
Review the websites above on the comparison of IAM standards and protocol. Which have gained the most in popularity and use? How are they used within organization''s implementation of cloud services? Is one more suited for cloud services over the others?
Read/Review:
CSA, Domain 12: Guidance for Identity & Access Management V2.1
DarkReading, Identity Management in the Cloud, Oct 2013
OWASP, Authentication Cheat Sheet
FIDO Aliance, Authentication Specifications
Cloud Identity and Access Management (Optional, if you have the book)
You can use these reference links for the above question