Augmented Reality and WebGL

For a project I was reviewing a number of WebGL engines with focus on Augmented Reality. As WebGL is rather similar to OpenGL ES 2.0 there are numerous reasons to use an engine rather than rolling your own code - dealing with matrix transformations and uniform just to name a few things. And there are a number of WebGL engines already out there. Even reviews of WebGL engines can be found aplenty on the web, with varying depth and also scope here and here. Here you find a quick overview of WebGL engines that focuses on Augmented Reality in conjunction with WebGL.