I keep up with things that interest me by subscribing to blogs on the internet. For this I use a service called Feedbin, which aggregates all my feeds in one place and keeps them up-to-date.
Next I use a feed reader called Unread on my iPhone and iPad to actually read through all those blog posts. And when I’m at my Mac, I use NetNewsWire.
Here are some other great feed readers for macOS and iOS: