Ning is very similair to many other sites that are already established and used by people all around the world. Ning is basically a social networking site where people can create their own group or network of people to communicate and chat with about whatever they please. It is also really great for people who want to join in a group that shares a common interest to themselves. Keirsley and Schneiderman's theory aligns closely with this tool as it is purely about social netweorking and collabortivvely communicationg with groups in the community.
Although a great tool for people who like chatrooms and collabortive communication, I personally do not think I will use this in my classroom as I think there are many other easier and more beneficial tools available.