[Facebook blinks, copies Twitter, still gets it wrong. β broadstuff](http://broadstuff.com/archives/1596-Facebook-blinks,-copies-Twitter,-still-gets-it-wrong..html)
Is the aggregation of activity model in danger of breaking?
(tags: [facebook](http://delicious.com/adders/facebook) [twitter](http://delicious.com/adders/twitter) [socialnetworking](http://delicious.com/adders/socialnetworking) [socialnetworks](http://delicious.com/adders/socialnetworks) [socialgraph](http://delicious.com/adders/socialgraph) [riverofnews](http://delicious.com/adders/riverofnews))