Hello! Since I published the sculpting tutorial, I got several emails from people asking on how to use something similar to the matcaps on Zbrush. It's actually a very simple technique, and easy to achieve. So even I'm working on the Spider Webs tutorial, I decided to record a quick tutorial about how to do it :) Also, this is the first english/spanish audio tutorial!! Enjoy it!
Blender Artists thread: LINK (Here you can check information about this, and also find some links to download matcap images)
Hope you like it! See you soon ;)