These are quick little how-to video tips sent in by builders.
(https://i56.photobucket.com/albums/g166/jraabe/shingle.jpg) (http://www.finehomebuilding.com/item/10782/asphalt-shingle-cutting-guide)
Here's the topic listing:
http://www.finehomebuilding.com/blog/homebuilding-video-tips-with-chuck-miller
Thanks John.