Interesting goat business

I've heard of "brush goats" practically my whole life.  That's where people take a herd of goats and put them in an overgrown area to clean out the weeds and unwanted brush.  Here is a link to a website of some folks who have made a business out of it which I thought was really interesting and informative.  http://werentgoats.com/  Their business and website is called "We Rent Goats".