I have an ASP.net site that uses a username/password combination to sign on. This site is a portal for all users, if the user is a Board Member, I would like to put a link to a sharepoint site, and pass thier sharepoint credntials to the sharpoint site to log them in. The board members do not want two usernames and passwords, and are not part of an AD domain. Thier logins in SharePoint are SQL logins.
How can I make this work?