Anyone have a resource on the technical aspect of this? Seems like these businesses create their own cryptocurrency? Or build it on top of Ether?
They encourage it. I like to think of ethereum as a ponzi scheme which spawns ponzi schemes (some of which themselves are intending to be a new platform for generating currencies...)
See e.g: http://www.nytimes.com/1990/02/25/books/nothing-but-zzzz-bes...
You can get a code template from here: