Connecting user accounts

Yes, a user can connect to any available options. Right now, that's managed through the SCLogin module. The "My Account" menu in the top right of this site is the SCLogin module. There are options in the module for "Show Connect Account Buttons" which will show any networks the user hasn't already connected to. You can also create a special menu item, like we use in our module, to show the reconnect buttons in the user menu, if you have that feature enabled.

Let me know if that helps answer what you're looking for or if you need more help.

Thanks,
Alex

Looking good. For the popup vs redirect, that's correct. Only Facebook has an option to open in a popup right now (the option is in the Configuration -> Facebook tab). All the other providers currently perform a redirect to the social network and will come back to your site after they complete the 'mapping' process.

As always, should you have any more questions, just let me know.

Thanks,
Alex