Michael,
The free SCLogin module doesn't have any social networking integration built-in. It's simply an improved login module over the standard Joomla login module with features like modal popups, better styles, and user menus to display when the user is logged in.
The social networking login features are enabled automatically when you're using our other extensions like
JFBConnect
for Facebook (and soon Google+ and Twitter) integration or
JLinked
for LinkedIn integration.
I hope that helps explain, but if you have any other questions, just let us know.
Thanks,
Alex