Looks like I've bought everything I can (bought all factories, bought all advertising, have all of the managers, and upgraded the speeds to maximum in all six factory types). So ... now I just set all of the factories not at level 6 to 100% autoexpand and wait a long time? (Gave it 5 stars but maybe there's a way to speed things up a bit?)
I like this game, and the music is very relaxing and pleasant to listen to. One suggestion would be to allow separate muting of the music and the sound effects when you drag the mouse. I'd mute the sound effects and listen to the music. Still though, 5 stars from me!
It looks like there's a green bar filling at the bottom of the screen (below the bottom two producers but above the menu bar at the bottom). What does that do?
 "Idle Fill Factory"){kind=icon}
 "Overlink Shadows"){kind=icon}
 "Incremental Popping"){kind=icon}
 "klocki"){kind=icon}
 "Medieval Markets"){kind=icon}