Free online service that places bids (similar to eBay) in the closing seconds.
Gixen can be used in the languages: English, German, French, Spanish.
You must inform before, if the auctioneer allows such software for the bidding process.
Disadvantages in own words of gixen.com: "You may feel uneasy about sharing your eBay username and password with a third party. There is no way around it, as online sniping services need your login info in order to submit a bid for you." More Info »
Gixen.com says: "It is safe to just give away your eBay credentials:
Gixen.com is using SSL both to transmit your password from your browser, and to authenticate it with eBay. Furthermore, your eBay password is not kept for long after auction ends - after your bids are submitted to eBay, your password is deleted within 48 hours to minimize the risk of it being compromised in the future."
Information from http://de.wikipedia.org/wiki/Sniper_%28Software%29 :
With “Gixen” the own user data must be passed on to an (unknown) supplier, which is often forbidden in the general trading conditions of the auctioneers and represents naturally also a safety risk.