I personally use Facebook, even though it can be really annoying, I still have good results there most of the time. Definitely Craigslist and the old put a sign on the car on a busy road helps too. Just out of curiosity, what are the offers you got? Make sure you take extremely good photos of the car, people are much more willing to overlook the year, high mileage or defects when a car looks clean and well cared for in the photos