These are articles about various topics that aren't reviews of videogames. I might write about games, computers, technology, or other topics like music, science, creativity in general, and whatever else strikes my fancy.
I try to reserve my own lazy rants or opinions for the "musings" section, but more sophisticated detailed, and worthwhile "why I feel X way about Y issue" articles based at least somewhat on fact and my interpretations of those facts will go here. If you're having trouble distinguishing these opinion articles from those opinion musings, consider the following: opinionated stuff that goes in musings are perhaps just how I feel in the moment or how I feel based on a poor or brief impression. Opinion articles here are formed on how I feel about something over a long period of time and experience in general, and are often formed on both my own experience and some research into the issue.
Other than those articles, you can also find tutorials and guides here, as well as just informative articles in general.