I use the Middleman static site generator to manage all content on this site. If you love Ruby and don't need a full-blown CMS (and the baggage that entails) please check it out.
Bootstrap is a front-end framework you've probably heard of if you do web development of any kind. I like it because it takes care of most of the hassle of making CSS look nice in any browser, so I can worry about the other details.
Font Awesome is a huge, free collection of vector-based icons. The social media icons on this site come from the collection.