The following might also be helpful

geekaw ~ Large list of image hosts
danceswithcameras ~ Image Tutorials & an Image Host List

There are a number of reasons you might want to use an image hosting service You are not charged by eBay if you use more then 1 image in your listing. You are able to place the image wherever in your description you want Your image is not resized to fit into the ebay frame There are some disadvantages to using an image host Free Image Hosts will autodelete your images after a few weeks, if you need to relist your item, or sell multiple similar items you may have to upload the image a second time. It can be more tricky to include your hosted images into an eBay auction listing template.