Obviously, the two places to try selling your iPhone, is eBay, and Craigslist. Craigslist is self explanatory. Local only. As for eBay, here are some tips: 1) eBay is going to be flooded with iPhones. To get yours to stand out: - DON'T do a Buy It Now Auction. You could get more than what you were wanting. - DON'T do a reserve. If you do, put it at only $150, not to high. - DON'T start out your auction too high in price. .99 - $9.99 is the best place to start - DON'T GET WORRIED if your auction is still at .99 cents and there is only 4 hours left. It SHOULD and there is a 95% it will jump up in price. - DON'T use the default eBay iPhone image. Take your own picture. - DON'T make the auction long and steal stuff from Apple's website. - DON'T say why you are selling it. In this case, that rule applies. - MAKE SURE you try selling worldwide. - MAKE SURE you list all the details of your iPhone. - MAKE SURE you say what you used your iPhone mainly for. - MAKE SURE you sell your iPhone unlocked regardless. - MAKE SURE you use PayPal only. - MAKE SURE to say all accessories will come with the iPhone, unless you don't have a certain item. - MAKE SURE you say "Fast Shipping" - MAKE SURE you pack your iPhone in a strong box, and around it put paper, bubble wrap, or anything to protect it from the box walls. About 1-2 inches away from the box walls are perfect. A 6x6x6 box is perfect. - MAKE SURE you try to price your iPhone on the cheap side. In my opinion use: 4GB: $250 8GB: $300 16GB: $350 Of course, give or take a bit, but remember eBay fees are a little over 8% of the final auction price. - MAKE SURE to use a great title, such as: "Apple iPhone 16GB BRAND NEW! - Unlocked - Any GSM" When i sold iPhones, i liked this one the most. As for shipping, use USPS for both domestic and internation. It's the cheapest and gets there fast. Shipping in the US: - Use priority 2 day shipping with $400 insurance. It's cheap and quick. It's about $15 on average nationwide to use this method. - You can't track the phone online. You have to go into a USPS store and do it there. It's because of security reasons, but you can buy delivery confirmation which is cheap. You put in the tracking number on the website, and it says if it was delivered or not. - You don't have to worry really. USPS does a great job like any other popular carrier, and if something does happen during shipping, USPS will cover it. Worldwide: - Avoid anything to do with Nigeria, Vietnam, India, or anything weird. I probably got over 200 messages from these stupid scammers on eBay. These scammers get into peoples accounts, and message you saying to ship to somewhere else like out of country, when the eBay account is in the U.S. - MAKE SURE to ask your buyer about customs, and to mark it as $50 or gift so they don't have to pay an arm and a leg to get the iPhone. - If they need it quick, they need to buy UPS shipping, which is like $100 to ship. Otherwise, use USPS which can take anywhere from 5 days - 2 weeks to get to customs. Shipping to Europe is around $25-$30. I'm not sure about the rates to anywhere else, but that is where i sold the most iPhones. I know there is a guide already, but this one is short and too the point, which covers everything i learned from my experience.