Follow updates on a page

Apologies if this is already posted, I searched and didn’t find the same request.

Often when I’m viewing a page that is a discussion, such as on a forum or in the comments of an article, it’s the discussion that I want to have archived. It would be cool to be able to follow a page rather than just bookmark it, and then have Memex periodically reindex it to capture new content.

This would also work for live news stories.

Extra cool would be if Memex let me know that a page I’ve followed has updates for me to look at, and a way for me to manage the parameters of the notifications.