Read Brainstorming on Implementing Vouch, Following and Blogrolls by David Shanske (David Shanske)

Vouch is an extension to the webmention protocol. Webmentions usually have two parameters…source and target. Target is the URL on your website  that the Source URL is linking to.
The vouch parameter is a third URL to help the target determine whether or not they should accept the webmention. This…

I like the sound of where this is going already! All these small little pieces loosely joined to build a much larger edifice is certainly interesting.
I’ve got a somewhat reasonable bookmarklet for quickly following people, though it’s not marked up with XFN data (yet) — perhaps another data field for Post Kinds? I do wish that there was either a mechanism for adding those to my Following page via the WordPress Link Manager or someone had a means of parsing lots of follow posts so I could quickly have data for both Vouch as well as for microsub readers either via my follow feed list or via OPML export and/or OPML subscription. WordPress obviously has some of the infrastructure built already, but there’s certainly a more IndieWeb way of doing it that wouldn’t require side-files like OPML.
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