What are innovative, new ways to design Master/Child relationships on a page? [on hold]

I'm currently working on a ASP.net application that has a variety of master, child relationships, portrayed on the page in a master gridview with tabs below. While this works for a somewhat small set of relationships, I was wondering if anyone could point me to some of the more innovative and creative ways to display this type of data.

Any suggestions would be appreciated. Be creative, I'm open to anything.