WebGL is a technology enabling web browsers to efficiently display massive amounts of 3D data in real time, which has achieved widespread support in most web browsers. But despite being fast and efficient, there not a lot of web mapping libraries or applications using its potential. In this talk we'll visit the most well-known web mapping libraries and platforms, we'll see what kind of state-of-the-web technologies they support and what are the challenges of writing WebGL code Other web tecnologies such as Service Workers and binary typed arrays mean that commonly used standards such as OGC WMS, OGC WFS and TMS might need to change if we want these formats to perform as good as the bleeding-edge technologies.