Jerry Coyne has an excellent piece, prompted by Pinker's piece: The demise of group selection. He bludgeons the idea to death in a manner any LW reader would enjoy.
He also notes why group selection is dead amongst evolutionary biologists, but is showing up from vocal proponents: Templeton Foundation money. Sigh.
This essay at Edge touches on a few possible meanings for the term "group selection." Pinker argues that as a form of memetic theory it has no explanatory power, and that group selection for genes does not fit the evidence. He focuses on humans with some mention of insects that live in hives. So the essay doesn't seem surprising, but it does seem rather Hansonian.