In this screencast you will learn how to use the ACS Extensions to grant access to users coming from business identity providers (like ADFS2) to your Umbraco web site. The Access Control Service (ACS) Extensions for Umbraco code sample is one extensions to Umbraco 4.7 which enables you to authenticate users from Facebook, Windows Live ID, Google, Yahoo, Active Directory and other identity providers. Setup, user management and handling of authorization policies are all seamlessly integrated in the Umbraco UI. Download the ACS Entensions for Umbraco here. All the screencasts in the series: 1 Setup2 SignIn and Authorization for Social 3 ADFS2 IntegrationFind out more about ACS: Newest samples and videos about ACSACS CodePlex Site (for code samples) Identity Training KitWindows Azure Platform Security Forum