In the future I'm probably gonna need some support rope for more hammock and/or gonna give advice to friends as to where to find good support rope for their hammock, so...

Know any places (other than obvious camping/sport stores or military surplus stores) that carry high strength rope. I have a friend who has a bunch of different kinds of rope from all over the place. Walmart, fred meyers, assorted department stores But, his are huge like rock climbing rope, not really made for hammock camping.