I’d second Github pages as a start (I set up a Jekyll blog in an evening, though there’s still not really any worthwhile content ), and if you want more viral spread then maybe write articles on https://medium.com?
I have a Jekyll Github site myself (raspstephan.github.io). Took a little getting used to for customization, but fairly easy and free.
But I do have a question about search engine optimization. I installed the SEO plugin, but for others my website still doesn’t show up on the first page of Google when they type in my name. I really have no idea about how SEO works. Does anybody have advice?