We've just added support for some more social networks here on Gagajoyjoy. In addition to Facebook integration, you can also connect any of the following social networks to your profile here:
Twitter: use for sign in and/or to integrate Twitter content on your profile
Foursquare: use for sign in an/or to integrate Foursquare content on your profile
Google (sign in only)
To add any of these, go to Manage > Your Social Networks
Then, if you add any new ones, go to your own member profile and you can integrate content from those linked networks to your new profile activity stream (if you want) or add a widget to your profile that pulls content from those networks.
We may add some other networks later this week.
Enjoy!