The first Carnival of Mathematics is here! I haven't had time to explore yet but there are a lot of fascinating looking links, most from blogs I hadn't heard of but will now start paying more attention to. And if this brings more attention to the unsolved problems I sent in for my own links, that's good too, though I think he's missed the point of my subgreedy conjecture: it's not about getting better expansions, but about trying to prove termination of a previously defined algorithm by greatly generalizing it. Anyway, thanks, Alon!