What I don't know is whether I should look into Identity infrastructure that MS is now promoting or stick to the older Membership mechanism (since Silverlight plays fine with web services). Not sure if MonoX uses Identity anyway, or if DotNetAuth does bridge to Identity
also cross-domain restrictions may be an issue, I may need to authenticate from sl app to service running at studio.clipflair.net site that serves the sl app and then use SSO to talk to social.clipflair.net that hosts monox
also gallery.clipflair.net needs to have authentication for metadata editing web forms, so would also need SSO with monox that is on other machine and sub domain (social.clipflair.net)
so question is if there is any suggested method to do SSO between monox and other ASP.net webapp/webservice