Based on common tree data "flare", and using D3js library, this example shows bubbles grouped in center (force), like earth gravity, with distinct sizes and colors.
The data is obviously future garbage. It has been hand massaged and forced into this shape so that we can analyze these four distinct channels and would thus alter service to them accordingly.
The size of bubbles is the size of each node, and color is the percentage of total that cover this node. If you click in a bubble, you can do a drilldown and dive into data tree
Also, you have a breadcrumb to drill up data.