I'm not being sarcastic—if you put in http://kinja.com while logged in, it will send you to your dashboard. It'll have all your stuff, notifications and activity. It will also list all the sublogs you are on and say you want to look at groupthink, you just need to hit the groupthink/activities tab (seen below):

http://kinja.com/dashboard/grou…

A much more usable private view page.