First experiments:
http://www.kurilo.su/workingprocess/webgl/
http://www.kurilo.su/workingprocess/webgl/mrhumpty.html
http://www.kurilo.su/workingprocess/webgl/building.html
http://www.kurilo.su/workingprocess/webgl/building1.html
http://www.kurilo.su/workingprocess/webgl/spider.html

Also I developed small Wavefront OBJ to JSON converter.
It works with triangulated OBJs.
To make such OBJ you can use Blender.
1. Open model in Blender. (you can it import from OBJ, for example)
2. Export to Wavefront (.obj)
3. Set settings as it on the picture
4. Open converter: http://www.kurilo.su/workingprocess/webgl/c/
5. Convert it.
6. Insert JSON in your file.
It generate ready to use in WebGL indices, vertices, vertex normals and texture coordinates.