I love craigslist.org. It's a free online classified ad where people sell, buy, barter, volunteer, find work, find vacation homes, chat, carpool, and rant. The homepage for craigslist is very dull but the lack of bells and whistles makes it easy to navigate.
I've gotten gardening advice, given away left over beer after a party, sold baby items, and bought just as much all for yard sale prices on craigslist. It's truly a bargain hunters dream.
If you ever have a few minutes take a chance and browse through the various categories on www.craigslist.org there is literally something for everyone.