I've been thinking about how to make better news feeds lately - here are some other interesting talks/papers:

http://blog.basho.com/2011/03/28/Riak-and-Scala-at-Yammer/

http://research.yahoo.com/node/3203

http://technoweenie-ruby-onales.heroku.com/#1

https://github.com/technoweenie/allofthestars/tree/master/ve...