My number one rule for reselling an item on Amazon or Ebay is to make sure you take great photos of your item to post in your ad [1]. Seriously, how many times have you passed up a classified because it doesn't have a photo? I do it all the time. So to make things a little easier for us visual types, there's PicClick [2].
PicClick pulls only those ads from Amazon and Ebay that have a picture in them, but unlike the standard CL search function, PicClick shows you all of the images at once!