original mat lib collected from the community form here: http://blenderartists.org/forum/showthread.php?252957-Cycles_Matlib-Beta-Release!-Help-Wanted! Thanks to everyone for their help. the mat lib is a little large & needs refining. you can add & remove your own materials too. It contains a .blend file with all the materials as Fake User for appending. Also included is an .xml file providing a categories list for ready to use in Matlibvx addon. https://sites.google.com/site/aleonserra/home/scripts/matlib-vx simply put the .blend & .xml, in the matlibvx folder, in addons folder & enable the addon & enjoy the presets.