Art in general has morphed itself and become incredibly diverse. From painting, sculpture, to the unsettling art is everywhere and it is something to everyone. Art usually attempts to have one of two things in common; first that it is creative, or second that it represents something to various degrees.
Online Art in my opinion is some of the most creative art in the world today. Online interactive art is intensely creative. The most desirable part of most online works is that it is unfinished, or interactive. Its not meant to be admired behind a glass case, it is online to be changed altered, destroyed, improved. Meaning every viewer gets a new experience from a piece and has a chance to alter it in a way that they seem fit.
In a way it gives art to the people who want to experience it. The best part and probably why it may not be considered as important as art in a gallery is that you can access it from your home. This does create complications through finding it, but it allows for more personal interpretation, where as at a Gallery it may be more pre-formed.
Another important aspect of online artwork is it really gives you an appreciation of how diverse and immense the amount of artwork is. It also demonstrates how truly gifted some of the people who produce it are, and allows the normal everyday person to experience it.