A directory of fantastic scenery techniques for diorama and railroad modeling.
This is one set of free tutorials,
[embedyt] https://www.youtube.com/embed?listType=playlist&list=PLLYkOTQM-OSX0w38NT8b9lBlAqx5Gfbja&layout=gallery[/embedyt]
And this goes to an online model train club where you can find some of the best information gathered in one place. Look at the club here.