I have a site that uses the login control found in VS08. However, those I created the site for would like users to have the ability to login using their email address instead of the username. From researching, I have found that simply requiring the username to be an email can cause issues. One site I found referenced a 4GuysFromRolla article but that did not fully really address using an email. Does anyone know how to do this or where I can find some good code examples?