Sell Your iPhone for More Than You Originally Paid
Got a case of buyer's remorse now that the 3G iPhone is probably on its way out? Don't worry, because Gizmodo has a great tutorial on how to sell your old iPhone on eBay for more than you originally shelled out. The key points? Jailbreak it first, and be willing to ship internationally; a combination of cheap stateside electronics and the weak dollar mean that your used goods are a foreigner's treasure.
The other advice they givelike making your title keyword-heavyis also great for selling your iPhone, and most other electronics on eBay.