Where can I buy used Nokia n900?

Hey I am using Nokia N 900 from past 3 months and believe me this is a great phone and for sure you will love it. I am using it from last 3 months but till now I have not faced any problem with this phone. There are some special features in this phone and I hope you should know them before buying it, so I am giving a little brief about this phone. The Nokia N900 offers a powerful mobile Web browser, plenty of storage, a 5-megapixel camera, and an ultra sharp display. It's also fast, multitasks well, and has excellent call quality. Wi-Fi, 3G, Bluetooth, and GPS are all onboard. Instead of a tablet form factor, the N900 looks more like one of the N series smartphones, such as the N96. Without physical navigation buttons, you'll mostly use the N900's 3.5-inch resistive touch screen to get around the phone, and it is quite a beauty. There are many websites where the seller give the advertisements to sell the phone so I think you should search on these websites as you want to buy a used phone and the websites are: eBay, olx.in and amazon.