Egraphs
Scroll, book, ebook/blog, egraph.
I've tried to promote DebateGraph as a particular example of "egraphs." So the sequence runs "scroll, book, ebook/blog, egraph," where the major difference between the first three terms and the last is that the first three have as their foundation time and the last space. More here.
In this way DebateGraph has wider application than its intended use and I think we can promote it on that basis.