I got an idea to shoot all kinds of webs. And to make pictures more dramatic, I used 'gradient' tool on duplicate layer set for 'difference' mode. This turns only part of the image inverted. The world is full of webs: complicated webs of social relationships, web fabrics used on many places, scientific networks, all kind of webs to catch people, and real cobwebs like seen on the top right picture titled as 'World wide web'. I was very lucky to catch that one. There was a decoration plate detached from one wall, and behind it there were dusty cobwebs against the gray cement. I turned the picture negative and played with curves to increase the contrast. Then I added the "black hole" with gradient tool to symbolize the viruses spread on Internet.