Lord Parkin
aka emperor
The "W" key works for cycling through active units.When the end-of-turn button is still green, that means I still have units left to give actions to. How do I know which units those are? Is there a way to cycle?

Religion has little to no influence in flipping cities. Unless someone is culturally pressuring the city tile of a city of yours, nothing will flip it - including religion. If you mouse over your city tile and it says more than "50% [Your] Territory", then you have no risk of it flipping to anyone else. (Typically it'll be 100% your territory for all cities near the start of the game.)Oh, and I keep getting notices about religions coming to my land. Is it expressly good or bad to adopt them? Will religion flip my cities?
The effect of religion is mostly limited to giving small bonuses to a city: the ability to build temples, monasteries and cathedrals, and also giving some bonus culture and happiness as well as enabling certain civic effects if you adopt that particular religion. The other effect is in making other leaders happy/angry depending on whether you share their religion or not. Generally you're best off picking a religion for one of two reasons: (a) a neighboring civ you want to keep happy has adopted the religion, or (b) it's the largest-spread religion in your lands. If you're tossing up between the two, you're better off to adopt a religion to keep someone happy and then work on making it the largest-spread religion in your lands.
There's a bit more detail to it, but those are the basics. Hope that helps.
