AuctionBlitz officially launched its Web site yesterday, offering "sniping" tools for auction bidders. AuctionBlitz. com helps buyers place last-second bids on auctions at eBay, eBay Motors, and eBay International sites, with plans to support additional auction sites in the future. Users can place unattended bids within the closing seconds of online auctions without having their computer turned on. To prevent bids from being placed too late, AuctionBlitz. com constantly monitors Internet traffic and automatically accounts for network congestion when submitting bids. Users can schedule bids for multiple auction items and then instruct the service to stop bidding as soon one of the bids is a winner. AuctionBlitz. com offers unlimited-usage memberships for as little as $13.99/year. All memberships come with a 30-day free trial period and payment is accepted via PayPal. http://www.auctionblitz.com