Steven Leckart, my surfing buddy and Wired/BoingBoingGadget Writer, did this variation on the USDA's food pyramid for media consumption. Agree with the proportions? I don't. I mean, where's the slot for comic books? [Wired via BBG]
Isn't gaming a form of entertainment? Also, if you watch your news on CNN or Fox, that's entertainment as well (it certainly isn't news).
Things can be combined too - a gaming on Xbox Live can be social networking and gaming together.
Surely the quality of these activities is more important than the time spent. 90 mins reading the New York Times has got to be more informative than 2 hours of Anderson Cooper.