The title says it all, so if you'd like to join one, leave your nation name and link, and I'll get back to you asap.
Agricultural Circle #1
Aluminum- Kalzabar
Cattle- Kalzabar
Gems- Serkai
Iron- Millirado
Lumber- Nascar8fanga
Marble- Millirado
Pigs- CMP02
Spices- Serkai
Sugar- Hellbilly
Water- Nascar8fanga
Wine- CMP02
Wheat- Hellbilly
Bonus Resources: Beer, Construction, and Fastfood
Industrial Circle
Aluminum
Coal- SteelSteve
Gold
Iron- Raithen
Lead- Raithen
Lumber
Marble
Oil- SteelSteve
Rubber- pokeyourheadoff
Water- pokeyourheadoff
Wheat- Adificio Depereo
Uranium*- Adificio Depereo
Bonus Resources: Asphalt, Automobiles, Beer, Construction, Microchips, Radiation Cleanup, Steel, Scholars
Agricultural Circle #2
Aluminum- Justin081294
Cattle- Ranga
Iron- Murder
Lead- Oderlan
Lumber
Marble
Oil- Murder
Pigs- Justin081294
Spices- Ranga
Sugar- Oderlan
Uranium- Olamide41
Water- Olamide41
Bonus Resources: Beer, Construction, and Fastfood
Luxury Circle
Aluminum
Coal
Fish
Furs
Gems- Paliputra
Gold- Ikenna A
Iron
Lumber
Marble- Paliputra
Silver
Wines- Ikenna A
Uranium*
Bonus Resources: Affluent Population, Construction, Fine Jewelry, Steel
Industrial Circle #2
Aluminum
Coal-
Gold
Iron-
Lead-
Lumber- Stryke297
Marble
Oil- Brunes
Rubber- Wesley Vos
Water- Wesley Vos
Wheat- Stryke297
Pigs*- Brunes
Bonus Resources: Asphalt, Automobiles, Beer, Construction, Microchips, Radiation Cleanup, Steel, Scholars
Agricultural Circle #3
Aluminum-
Cattle-
Iron-
Lead-
Lumber
Marble
Oil-
Pigs- Ana
Spices-
Sugar-
Wheat- Ana
Water-
Bonus Resources: Beer, Construction, and Fastfood