Authentication using WCF and asp.net custom-membership-provider

http://aspguy.wordpress.com/2011/07/30/single-sign-on-with-wcf-and-asp-net-custom-membership-provider/
http://www.codewrecks.com/blog/index.php/2009/11/26/wcf-over-https-authentication-with-asp-net-membership/
http://stackoverflow.com/questions/2615316/using-asp-net-membership-provider-authentincation-in-a-wcf-service