[Wojtkie]

Couldn't you technically crawl all these blogs for their "blog's I'm reading" and create a social graph? You could start vetting based on how often other blogs link to that one, sort of like an impact factor in research.

[8organicbits]

I've been doing this. Here's an example page: https://alexsci.com/rss-blogroll-network/discover/feed-41e7a...

I don't like counting the number of subscribers, that ends up surfacing things like major news websites, or the hacker news feed. But I've found the graph to be useful in finding recommendations.

[cosmicgadget]

I think Marginalia does bidirectional link analysis if that helps.

[travisjungroth]

That sounds like PageRank, Google’s original algorithm.