In the online auction world, buyers and sellers use a system known as feedback to publicly describe and rate their transactions with each other. Feedback is sometimes given other names, such as buyer ratings and seller ratings. Feedback scores are posted for all site users to see, and they provide a reasonably reliable means for keeping buyer-seller interactions fair and honest. Good feedback scores should be carefully nurtured and protected. They are the main measures of your reputation and your trustworthiness as an online auction seller and buyer.