Im a total noob when it comes to nodes and the last entry in the nodes sticky is 17 july - Im sure theres been some new stuff since…
Can anyone point me to a good tutorial (not video, cant access them at work) on the latest stuff re nodes 
denshidan,
I don’t know the specific dates for these, but they may be of some help.
http://www.blender.org/development/release-logs/blender-246/compositing-nodes/
http://www.blender.org/development/release-logs/blender-246/shading-nodes/
Best of Luck!