There's no where you can see what ressources you have. This is quite annoying when you want to know if you already have this or that ressource or how many of each ressource you have. You would think you could see those under economic overview... but you're not. Now, you can see the ressources you have when trading with another civ, but it's not a very quick method... and it happened to me that there were no civ to trade with at some point, so I couldn't use this "work around". You can also see luxury ressources you have when looking at hapiness, but it's not one easy and quick way to see every ressource your Civ has.