Piggybacking on the last post in the realm of buying things, this website has completely revolutionized the way I think about online auctions. Listia, as it is called, has a business model that is beyond genius. It uses absolutely no money to facilitate its auctions, and instead uses credits. This makes it so that, provided a certain auction has free shipping, you can get the item absolutely free. Like the tag line says, "auctions for free stuff". Now technically the credits are free, but since they can be bought at 10 cents a piece, that is their actual market value in my opinion. They give you 50 credits when you sign up and then 50 more credits when you first list an auction, so it is designed to kind of force you to get involved in the community. And the stuff on the website isn't crap either, I've gotten some pretty good items from there, and if you play your cards right and sell things to get more credits, you can get stuff you want absolutely free. I did a tutorial for N100 on how to start using the website if you are still confused, which you can check out here. I would really urge you to check out the website, because really, who doesn't like free stuff?