I'm still updating it. If you have any insanely useful Emacs commands that a new user should know, let me know and I'll try to squeeze them in.
I just got tired of so many crappy cheat sheets with ~20-30 commands in one column that didn't even give you enough to operate. Plus they were all ugly. Now there's one that's not :)
Emacs help actually defines these as two separate commands (C-M-u is "backward-up-list", C-M-q is "indent-sexp"), but I find that I can just hold down C-M, and then type "u", "q" in succession for the same effect.
Actually, I don't use C-M-\ much, since I prefer to work in individual blocks and C-M-u-q does that nicely, without my worrying where I last set the mark.