dSHIFT blog post about Set up a trust between AD FS and Windows Azure AD

[dSHIFT byXavor]

Each domain that you want to federate must either be added as a single sign-on domain or converted to be a single sign-on domain from a standard domain. Adding or converting a domain sets up a trust between AD FS and Windows Azure Active Directory (Windows Azure AD). Read Blog: http://www.dshift.com/blog/set-up-a-trust-between-ad-fs-and-windows-azure-ad/