The Internet has not only changed the way we get information, it has also changed the way we shop. Online stores have appeared in droves, specializing in almost anything you can imagine. Music sales in particular have taken off online, as there is no shortage of professional and amateur sellers willing to offer cheap CDs online.Online music sellers can often offer discounts of at least 30 percent off retail prices--and in many cases, there is no sales tax. New releases are often discounted at an even higher rate if you pre-order them in advance. Some retailers even offer free shipping when you buy multiple CDs from them.Best of all, auction sites make it easy to find cheap CDs online in every imaginable price range. Indeed, virtual auction sites allow users to put their used (or new) CDs up for sale at whatever price they choose. Visitors looking to purchase cheap CDs online can place a top bid indicating the most they are willing to spend on the CD. Of course, for shoppers who are convenience oriented and want to make an instant purchase, many online retailers offer tons of inventory at fixed prices. You should always find out as much as you can from the person selling the CD about the condition of the item--especially if it is used. Typically, you can contact the owner of the item to ask these questions without actually sharing private contact information, making it possible for anyone to safely buy cheap CDs online.