I’ve long referred to Scalable Vector Graphics as the “fourth image format”. In the first decade of the web, it felt like the forgotten format, due to lack of browser support. But since IE9, SVG has boasted near-complete support in modern browsers, and it’s been a deep pleasure to see it used in so many different ways on the modern web.
SVG still has some way to go: it’s not yet used for every logo, and it’s much more powerful than mere vector illustrations, as anyone perusing this reading list will learn.