Idea for a new feature on Blogger

I was surfing through some blogs that I got to through some comments posted by other bloggers on mine. This seemed like a way to find new and interesting blogs (interesting because, more often than not, poeple who comment on your blog tend to have similar interests as you).

If you have used orkut (another online community oriented portal owned by Google) you probably know that as you browse profiles of people, Orkut keeps track of the shortest path from you to the person, whose profile you are looking at. In Orkut, each member maintains a list of friends and when you look at a profile the "trails" are formed by looking at various paths (through friend lists) connecting the two profiles in question.

Now, although blogger does not have the concept of a friends list, we do have comments from other bloggers, and so I wonder if it might be possible to introduce a similar way of providing a "trail of comments" wherever possible? That way, when you reach a blog (and you are logged in) you know what all different paths you have taken to get there in the past...