Here is a preview trailer for SIGGRAPH 2013's Computer Animation Festival.
Acute3D have launched the Free and Basic editions of Smart3DCapture at SIGGRAPH 2014.
ZBrush SIGGRAPH 2013 Recap
Here is a massive recap of ZBrush's presentations from Siggraph 2013.
Chaos Group to Preview V-Ray 3.0 at SIGGRAPH 2013
Chaos Group will preview V-Ray 3.0 at SIGGRAPH 2013.