I've always liked this idea.

However I am not sure about "perma-shortlinks", for discovery on other sites as the means of networking and discovering content. It seems clunky to maintain as it requires a human or some automation to curate/maintain the links. If a blog removes a link to another blog, then that pathway is closed.

It would be cool if we could solve that with a "DNS for tags/topics" a - Domain Content Server (DCS) e.g.

1. tomaytotomato.com ==> publishes to the DCS of topics (tech, java, travel)

2. DCS adds domain to those topics

3. Rating or evaluating of the content on website based on those tags (not sure the mechanics here, but it could be exploited or gamed)

You could have several DCS for topics servers run by organisations or individuals.

e.g. the Lobsters DNS for topics server would be really fussy about #tech or #computerscience blog posts, and would self select for more high brow stuff

Meanwhile a more casual tech group would score content higher for Youtube content or Toms Hardware articles.

This is just spit balling.