"Or as we say, Recycling is Bullshit."
This article is poorly written and filled with a lot of half truths.
One argument against glass bottles is that it takes a lot more energy to create them than for instance creating a container like tetra pak.
I'm not sure what their motives are, but articles like that scares me.
You can put stuff in recycling and they will take it (where I live in Northern California) and then sort it out to landfill at the processing facility.
I'm not sure if it's used more or less than cylinders, but I see more cuboids than cylinders on my local shelves.
http://en.wikipedia.org/wiki/Tetra_Pak
http://en.wikipedia.org/wiki/Tetra_Brik
Edit: an interesting link to irregular can sizes (also plenty of cuboids)
http://www.sommecan.com/nonround/irregularcanguide.html