Cycles materia library using Matlib VX 5.3

Hello everyone.
Last week I have started with collecting some Cycles materials into library. I searched through this forum couple hours and found few cool materials. But it’s very time consuming. I would like to ask everyone, who know about place where are Cycles materials for download, or where are screenshots of shader setups, if you could leave a link here in this thread. I don’t know if somebody already started make some library so if yes, I’m sorry for duplicate thread.

Link on the library:

At this time are this websites only in czech language, but if were some people who would want them in english also, it wold be no problem.

In advance thanks for responses.