Downloadable OSL/Shader files??

Does anybody know of a source for good shader files??

Im looking for fast rendering Satin/Silk, Velvet and Shiny Metals. Everything i have found either is a Look What i Made! thing with no details at all or a huge JPG of a node map (that is mostly unreadable).

Bonus points if you are able to write documents on what does what.

Oh and this is for Ballet Costumes if that helps on what im looking for.

im needing either blends or shader files blurry pictures of a node map will not cut it. i have already seen that thread (posted in it in fact).

Ok, old thread. But here are a lot of OSL shaders scrips for download: