Learn how to use Windows Live to create a communication experience on your domain! It begins with registering a domain (e.g., mydomain.com), then adding accounts (e.g., email@example.com) in that domain. These accounts can be used for Messenger, Spaces, and Hotmail, and are differentiated from @hotmail.com and @msn.com accounts. See how our SDK and Open Membership features allow Web developers to create rich communities and applications that connect people with shared interests. Our current customers include universities, small businesses, affinity groups, social clubs, and families.