Side Effects Software has released the 2014 Demo Reel featuring the work of Houdini customers worldwide.
Arnold for Houdini
Solid Angle have released the first public release of their Arnold renderer for Houdini.
Houdini Geometry Tools
Diego Inácio has created several geometry tools for Houdini, using Python.
Houdini - Demo Reel 2013
Side Effects Software have unveiled the 2013 Houdini Demo Reel.