Originally Posted by khuon
Trek still makes frames the old way. It's called carbon fibre.
If you think about it, the process of making CF frames and components is fairly analogous to baking a cake or making a loaf of bread.
The other "old way" of building aluminum frames is to have Giant due it for them. Which is what most vendors do. If you're riding an aluminum mountain bike, the odds are strong that Giant built that frame.