Selling things on Facebook questions!?

[cacee ©]

If you want those flashing advertisments, yes you have to pay.
But you can sell things on the marketplace. You can find it on your lefthand navigation. Or this website http://www.facebook.com/marketplace/?ref=sb

simply add a new listing and sell what you want. you can limit it to just your network or sell it across the whole facebook. it seems reliable although not that many people use it. if you want to sell something, i'd suggest ebay is a better tool