Video of app in action
I created this app because I wanted to see what my friends and co-workers were doing on StackOverflow. I was previously going to their profiles to see what they were asking, answering, and commenting on because most of the time I found what they were doing was interesting or relevant to what I was doing.
This app is for anyone who visits StackOverflow using their desktop browser and has 'friends' they would like to follow on StackOverflow.
Google Chrome extension http://goo.gl/ooE34
Mozilla Firefox extension http://goo.gl/3Pnqa
Desktop browsers via Google Chrome extension, Mozilla Firefox extension, and bookmarklet