UnderMRKT - UnderMRKT is a popular platform that provides instant notification about new and accurate eBay listing items.
Gixen - Free online service that places bids (similar to eBay) in the closing seconds.
BayGenie - eBay auction sniping service.
Myibidder - Myibidder (Myibay) is a Free Auction Bid Sniper service for eBay.
uBuyFirst - Advanced eBay buying software finds newly listed "Buy-It-Now" items first!
GarageBuy - GarageBuy provides an easy way to search on eBay.