I want to expand on my previous comment and tell you HOW I found it useful. My Rails learning typically falls into two categories. I'm either reading manuals/online tutorials OR I'm digging through GitHub to see how other people put things together. Both have been powerful. So, the reason I found scaffoldhub useful was not because I wanted to clone the scaffolds and use them, but simply as another way to identify specific functionality that interests me, and then browse through the associated code on GitHub. Hope that helps!