I just came across an interesting tool that explores connections between different websites using Google.
All you have to do is put in a keyword and it’ll graph the top results in Google for you. I did it with ProBlogger.net as the keyword and got this graph (click to enlarge):
It’s hard to illustrate the tool in a static picture – but each of the circles represents a website and the circles around it are other websites that link into it. Click on any of the circles and you can expand them to see what is in turn linking to them.
You can play with this tool at TouchGraph | Products: Google Browser.