#Nodeable is a good example of generating #insights from #bigdata or the real time trickle feeds. It uses Twitter's Storm for the processing engine Stream reduce. I signed up for a trial account to play around.
The insights like "Most Active" metrics are generated for Amazon Web services status. The reports are generated and tagged in real time. The twitter follow counts are displayed.
It has only some basic set of connectors, but one can create custom connectors using its JSON Schema. The outbound data can be pushed to your own Amazon s3 or Hadoop WebHDFS, which is good for private companies.
The github/rss stream is shown as activity stream.
Sharing an interesting presentation of Storm real-time computation.
ETE 2012 - Nathan Marz on Storm from Chariot Solutions on Vimeo.