Thanks to some farm/country message boards, I learned about Craigslist several months ago. We've used it to sell several big-ticket items. I check out the "for sale: farm and garden" section several times a day.
Thanks to another tip from a message-board buddy some time back, I also discovered "The Best Of Craigslist". Now I'll warn you, it does get a little raunchy at times. But I've had some great laughs reading this stuff.
As an example, just click HERE. Don't worry, this one isn't raunchy.