Even though their name is a shameless rip-off of ours, y’all should go check out The Everything Seminar, our Cornell-ian analogue. As I think I’ve mentioned, I’m a big supporter of Web 2.0-icization of math, and thus am doing a little Mr. Burns-style finger tapping (“Eeeexcellent”) as I see the number of blogrolls we are on steadily grow. (For example, a student at the Max-Plank institute seems to have started a blog here, though I only see one post).
Of particular interest to me (not because of my research, just because I think it’s cool), they’ve been running a rather interesting series of posts on forbidden minors and graph embeddings into surfaces. The forbidden minor characterization of non-planar graphs (you’ll have to follow the link if you’ve never heard of that) is one of my favorite easily-stated and mind blowing theorems, and I was very pleased to hear that there is a massive generalization of it for any minor closed property. As Mr. Burns would say, eeexcellent.