Free Textures for Second Life, Opensim and realXtend from Torley
This is already an old package from Torley, but still very much valid. Contains over 600 awesome textures – and the best thing here is that you are free to use them on your commercial products. Torley wishes you don’t sell them to anyone as is. Here’s the original blog entry link.
Author: Torley
(Image from the original blog post)
License: Public domain