I'm not sure if a thread like this already exists, but having searched for a bit, I haven't come across one yet. Please redirect me if I'm wrong.
I thought it would be nice to have a collection of some of the best youtube, user submitted, etc. vids that show some top notch concealment techniques.
I'll kick this off with what I consider to be the classic ghillie suit vid showing not only how effective a good ghillie can be but also showcasing some of the different styles of design out there. This might be my favorite just for that reason.
This next one is by ripperkon, one of the bushes in the first vid, who's videos are most excellent. I found this one to be particularly useful when trying to come up with a good rifle wrap design. The "triangle net" in particular is my new favorite.
More to come as I get more time and please add some of your own!