Looks like Google added a feature to track your friends shared items. It's not quite working for me yet though
 mirror.pb30.com/images//Dock-2 ...
google.com/reader/view/user/-/ ... |
They also seem to have Google Profiles which are integrated: google.com/help/profile/
It doesn't seem possible to choose who can see your shared items which is annoying. |
I've got an example picture with mine  mrrix32.googlepages.com/reader ...
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