Maybe you really want to build your own, but if not, Newsblur is an RSS reader has an excellent ability to include email newsletters.

When a human-powered transcript flows seamlessly from "tide disputes" to "Thai disputes" without once taking on board that "tides are these ecclesiastical taxes ...".

I realise it is absurd to take to Twitter to wonder where are the blog carnivals of today, but ...

... where are the blog carnivals of today?

https://jeremycherfas.net/blog/weeding-mendels-garden-and-other-blog-carnivals

This:

For all the talk about how the internet isn’t as interesting as in the “Good Old Days”, there are so many places I would happily spend time reading and contributing to if each day was at least twice as long. So many chats, so many forums, so many blogs, so much social media.

Thanks, Ton, for your post linking to Alan Levine's Google-taming post. With your guidance, it was easy to knock up a few Alfred workflows. I should note, too, that DuckDuckGo has a !bangsearch for !flickrcc (which gives slightly different results, because it uses a different CC code) and possibly others