I checked before coming to Turkey from the US - do I need a Visa? The answer was no, you do not need a Visa.
But! When you get to the airport Before getting in the Passport Control line (can you see I made a mistake here?)...Before Passport Control check the window for Visa and see if your country is on the list (I had to walk right up to to see). If it is, you have to pay for a sticker. It's more like a fee than a Visa since they check nothing just collect, in my case, $20usd.
If you make a mistake like I did you'll have go buy that Visa and then stand in the Passport Control line a.g.a.i.n. I'm sure this was mentioned before but as for me I didn't even think to ask.