An idea : Refreshing the page leads to more ad views . If this is correct , giving the players small reward, let's say 0.5 science point per refresh, will increase the game income a lot because we will refresh more frequently
Setting AutoRefresh in my browser to every 5 sec. will be nice

I suppose, this pay per view is the reason we haven't much bigger warehouses ;p
Tomos: click on ad is paid separately?