Every Programming Blog I've Ever Visited
Below is a link to over 350 programming-related blogs that I've encountered over the past 3 years. The vast majority are the personal blogs of software developers. Some blogs are design related, but they all focus on some aspect of technology.
There are some very popular blogs listed as well as some very niche ones, but they all contain high quality content. These types of labor-of-love sites seem to be rare on the internet these days, so I'm always excited to stumble across one.
The list is hosted on my personal Pinboard account. (If you haven't checked out Pinboard, try it! It's easily one of my favorite online services)