Let's see. Often when I find something interesting on HN or Reddit I might see if the author writes other interesting posts and subscribe to their blog on Feedly. I currently have a few hundred sources that I subscribe to so it might be a bit hard for me to choose which "blogs" I'd promote. But there are some:
- https://blog.codinghorror.com/
- http://www.pentadact.com/
- http://procworld.blogspot.no/
- https://moviecode.tumblr.com/
- http://hackaday.com/
- https://research.googleblog.com/
- https://gpuofthebrain.com/
- https://xkcd.com/
- http://oglaf.com/
This is an almost random selection of some of the blogs that I subscribe to.