First of all, I'm sorry if this is not the right place to put this, but I thought it would be relevant to a science/math resources forum (so feel free to move this or do whatever). One idea I was considering is if there could be a thread that contained an index of important things that one should know from each subject, perhaps at the undergraduate level. What I mean is, for the section on algebra, one could have "Homomorphisms and Kernels" (perhaps with some subsection elaborating on what specifically they should know on these topics), indicating that one should know about homomorphisms and kernels, the section on Analysis could have a point designated for "Metric Spaces" and such. I think this could be helpful in creating some good standard for what an undergraduate should know, particularly since some courses, and even books, cover varying amount of material that one may not even be aware of. Furthermore, it could help with those who are self-studying, as for example, should I read a book that doesn't cover something, I would see the index, see something, unfamiliar, and just look for it in a different resource, via another book, or even some lecture notes from the internet. What do you guys think? And thanks in advance for any response.