I feel the reason is that there are many very good tutorials and open source code to teach people how to develop applications. However, there are not many good

I feel the reason is that there are many very good tutorials and open source code to teach people how to develop applications. However, there are not many good resources for learning design. There are many tutorials on designing simple buttons or photoshop patterns, but there is a huge gap between those tutorials and creating modern and functional website designs.