PubSubHubbub and arbitrary content (JSON)

I think canonical JSON combined with google-diff-match-patch might be workable for superfeedr to implement to send diffs rather than the full content each time...

https://github.com/jchris/canonical-json http://code.google.com/p/google-diff-match-patch/

It is, after all, a text format. I think for things with big multiline strings, google-diff-match-patch might work better on it if the multiline strings weren't on a single line like they have to be in JSON.

Looks pretty good to me. A step in the right direction.

I guess they are trying to convince the popular content providers that instead of them scraping their data all the time to provide subscription-style services to their users, they should just tell Superfeedr about changes via their API.

It could work!