I use Feedly to subscribe to a bunch of websites and blogs and such. When I see something that is interesting I tag it and bag it. Here is the raw shares.rss.xml. I also share thoughts or commentary on the 'share' tag.
Feedly is a bit evil and doesn't give rss feeds for "boards" aka tags of my articles. So I bounce it through zapier and then through a nuxt route to get it to the above link. FUN!