Smart new kids on the block

To me, this seems really, really rich. When you're looking at stock quotes in the newspaper, you're "hunting and gathering". On the other hand, when you're looking at TV listings ("What's on tonight?"), you're "grazing". No, as usual, it's not my brainwave. I'm merely a hunter and gatherer or, maybe, a grazer here. This piece of astonishing sociological taxonomy comes, courtesy John Morton