FlightCaster - predicting flight delays Ion Flux - analyzing DNA sequence data RapLeaf - personalization and recommendation systems Razorfish - digital advertising Domain-Specific Languages Built on Cascading PyCascading - by Twitter, available on GitHub Cascading.jruby - developed by Gregoire Marabout, available on GitHub Cascalog - authored by Nathan Marz, available on GitHub Scalding - A Scala API for Cascading. Makes it easier to transition Cascading/Scalding code to Spark. By Twitter, available on GitHub References External links Official website Free software programmed in Java (programming language) Free system software Cloud infrastructure Hadoop