Any magazine on diagramming industry?

Hello, Is there any magazine or web site on the diagramming industry? It may introduce the diagramming software market, technology, or any other topic related to diagramming.

Thanks!

I’m not sure the “diagramming industry” is big enough to have a magazine. There are certainly things on “graphics” and “visualization” that touch on diagrams from time to time.

There are books on Amazon related to Graph Drawing.

Anybody else have any suggestions?

So is there any reports on this industry? I’d like to know the marketing status such as which are the bigest companies in this area, it’s annual incoming, it’s strength and weakness, etc.

Thanks!

It seems that no one interested in these questions here. So could anyone tell me where can I get the answer of these questions? Some forum? or newsgroup? or other place?

Thanks!