Gixen - Free online service that places bids (similar to eBay) in the closing seconds.
Geoship - Geoship is an efficient mobile application that provides you all international eBay search information right on your mobile device.
Myibidder - Myibidder (Myibay) is a Free Auction Bid Sniper service for eBay.
Melltoo - Melltoo is an elegant mobile application that helps you to buy and sell your stuff right on your mobile devices.
uBuyFirst - Advanced eBay buying software finds newly listed "Buy-It-Now" items first!
Ritchie Bros. - Ritchie Bros.