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Show and Tell works this way: You can upload up to four high-resolution photos, and write as much as you want about the history or stories behind each item. You can also track favorites, and post comments and questions. You can find more details here about uploading photos here.
This part of the site is not for those trying to sell jewelry. It's meant to be display only. Think of it as a shared virtual museum.
Show and Tell is free and they make it very easy for you to sign up and upload your photos. If you do upload your collection, please let me know here in the comments and I'll link to your photos in an upcoming post on my blog.