ACS may be a PaaS service, but the programmatic route is not the only way to is heart: there are many situations in which developers, administrators and users interact directly with it. The new release of the Access Control Service features a management portal you can use for managing your access control policies, from which identity providers you want to engage with (you have a choice of social providers, such as Windows Live ID, Facebook, Yahoo, Google and any OpenID or OAuth2 provider, and business providers, such as Active Directory Federation Services instances or any other WS-Federation/WS-Trust provider) to the transformation rules which decide what claims will be available to your application. Furthermore, ACS now provides various features aimed at solving the home realm discovery problem (HDR): in practical terms, features which make it easy for developers and end users to always pick the right identity provider. The man behind those features is Aaaron Smalser, Program Manager on the ACS team: in this 20-minutes interview Aaron discusses the user interaction aspects of the service from his unique perspective. If you want to know more about the new ACS, check out the announcements below and the other videos in this IdElement special: Stuart Kwan announces the RTW of ACS2.0Justin Smith on the 2. release of ACSCaleb Bakeron using ACS with your WP7 appsFind out more about ACS: Newest samples and videos about ACSACS CodePlex Site (for code samples) Identity Training KitWindows Azure Platform Security Forum