Detroit--In a move that will create a mammoth virtual marketplace, DaimlerChrysler, Ford Motor Co. and General Motors Corp. jointly announced Friday that the Big Three automakers will form a business-to-business integrated supplier exchange through a single global portal. The new venture, which will be open to all auto manufacturers, suppliers, partners and dealers, will operate as a separate business independent of the three automakers. The e-marketplace will offer purchasing, auctions and bidding. Additionally, it is intended to simplify the supply chain by easing financial services and logistics. GM will continue to operate its TradeXchange, and Ford will continue to operate Auto-xchange. GM's TradeXchange partner, Commerce One, and Ford's Auto-xchange partner, Oracle Corp., will be involved in creating the new site, provided it clears the anticipated regulatory hurdles.