Teen model usernet
The term top-level hierarchy refers to the Teen model usernet defined by the prefix before the first dot. They are not devoted to publishing newsalthough they had been so intended when the internet was young. There are many local sub-hierarchies within this hierarchy, usually for specific countries or cultures such as free. Binary beat readers can participate in the column at chicagotribune. Typically, the newsgroup is focused on a particular topic of interest.