Thanks for the kind words. The source is user suggestions and my own searching and browsing.

I do sort of track outbound links, so that I can show which domains a blog links to most, which can sometimes give a sense of what the blog is about.

But, while I haven’t analysed the data, I suspect the links from one blog to another would be a very tiny percentage of the overall outbound links. It’s the kind of thing that might have been more interesting/useful in the olden days of blogging when more people linked to each other, and replied to each other, via blogs rather than social media.