Free materials

Here are some materials i made. I don’t know where else to post them so i’m posting them here.
http://a.imageshack.us/img39/6898/materialsv.th.jpg

Uploaded with ImageShack.us

Download
http://www.mediafire.com/?amxn05gjvzd5b4f

You should define the materials so people can decide if they are good enough. For instance “blue glass” “red plastic”. Even more specific if possible.

They look good - you could add them to http://www.blendswap.com/