I've noticed in conversation here and also in some of Lain's videos, that contrary to what n00b players like I would assume, pro players don't always seem to improve special resources appropriately (i.e. not put a winery on wine). What situations are there, to do this? I am aware that some appropriate improvements are rather poor or at least provide less benefit than, say, a town. At the same time, you lose access to the resource, if you don't build the appropriate improvement. There is no use to the player in having more than one of any resource (which is kinda stupid, but okay), unless there is another civ to trade with. How highly do you rate trading? Or would you rather just connect one resources and put other improvements on the other tiles? One other, related question: Is there an overview anywhere of what types of tiles / resources provide additional yields to cities founded on the tile? My reasoning has always been to try and put a city on as crappy a tile as possible (deserts come to mind), because it will be upgraded to 2F/1H/1C regardless. But I am also aware that Plains+Hill will give it +1H and that riverside wine (as I just learned) will give it +1C (which is why plains hill wine riverside is awesome), so I assume there are other types of locations you can benefit from and it would be great to have a way of looking this up!