This was a big problem for me a while back. I don't think it could even be classified as browsing it was more like checking...over and over. Maybe just maybe something might have changed...maybe I missed something, better check again.
It literally ate up hours a day for me doing "laps" of various sites. I would just browse to them, look for anything new, maybe read them, and then move onto the next. Sometimes I would just refresh the same page over and over. Stop for a minute or so and then go right back.