Most of my friends think that leaving the browser opened on 3G will keep consuming data. In fact they also think that browsing as fast as possible will leave them with more available data on the mobile plan.

tell them to try buying a coffe at your local tabacchi at twice the speed and getting it for half the price. 😉

The second one is posible if you click a redirect before your full page has loaded and it triggers javascript to load more. Some frameworks do this to reduce loadtime to trick google seach to think its faster than it actualy is. But then you have to be reaaaly fast.

Actually I think your friends are right (websocket / long polling app etc...)

@leethel @resdac They don't know that. Anyway, that's not enough to make a difference even on a small data plan.