How awesome are Polaroids? Aside from the fact that the cameras are humongous, I don't really see any downsides. They're fun, they're easy, they're instant - kind of like how I like my friends. Just kidding.
Polanoid.net is a website that is trying to create the world's largest database of Polaroid pictures, and it's doing that by allowing Polaroid nerds of the world (i.e. ME) to register and upload pictures for FREE.
Good for: photography freaks and Polaroid geeks.
Polaroid (for the official website - but it only has one choice of camera), Ebay (for a wider selection of types, looks, and some harder to find versions), Amazon (for other selections, and in my opinion, easiest place to buy).
P.S. Don't forget to buy the film!