Auction websites are online platforms where users can buy and sell items through bidding. Sellers list their products, and buyers place bids over a set period. The highest bidder at the end of the auction wins the item. Popular auction websites include eBay and Heritage Auctions. These platforms offer a wide range of items, from electronics to collectibles. Users can browse listings, set maximum bid amounts, and receive notifications about their bids. Auction websites provide a convenient way for individuals to find unique items and for sellers to reach a larger audience.