I have a created a Twitter list of some 43 (and growing) World Cup related feeds. This includes news outlets, players, pundits, journalists, bloggers, and other commentators.
A few of my favorite feeds are @henrywinter, @runofplay, @FourFourTwo, and @Zonal_Marking of the exceptional Zonal Marking site. ((@Zonal_Marking also has a Twitter list of 105 football journalists.))