It's only a couple articles, and by far the most useful part of this site has been that I can simply link people to my resume, and it will always be up to date. No need to worry about which version I gave which person. I'm no longer looking for jobs but it was very nice when I was. Besides that I have a couple small blog posts but I'm not sure how much value those provide, and the writing might not be great.
I'm working on a portfolio section of the site, where I will showcase some of my hardware and software projects. At the moment, the only portfolio-like page I have is the link to my Github profile.