I have been working on personal projects for a long time, as I believe they are the best way to consolidate the technologies you learn. I'm a bigfan of open-source software. To showcase my projects and colaborate with other engineers (or non-tech people, contributions always welcome!), I use Github.
From time to time, I also publish some of my results to LinkedIn.
All of these projects were taken by running the Go tool I use to build my Github's README. The tool's repo is Qkessler-README.