"For every Vampire Weekend or Arcade Fire that goes beyond this point, spinning online buzz into big success, there's an M's, or a Thrills, or a Clap Your Hands Say Yeah — take your pick of any blog-hyped band that once generated copious heat only to cool off considerably, partly victims of a zippy online impatience that, as Matthew Johnson, founder of Fat Possum Records, put it, 'can devour bands whole, and be done with them.'"