Enter Zapier, my saving grace from this methodology. Instead of having a script that is constantly looking for new updates, Zapier pushes an update when one exists. The event driven functionality will require less server resources and likely ensure that there's a whole lot less duplication.
The only snafu I've encountered so far is that retrieving "Likes" from YouTube is an enormous pain. Zapier doesn't support such a thing and the Youtube API requires constant authentication to retrieve that insight. It's a huge beast and I can't understand why they make such a high barrier for entry. Whatever happened to RSS feeds?