Proxibid announced it has secured funding from Tetrad Corporation to expand its marketing and advertising efforts and to undertake an aggressive development schedule for its new website. Proxibid provides live Internet bidding services to more than a thousand auctioneers around the world. The funding news comes as auction houses are looking for alternatives to eBay's Live Auctions platform, which is closing at the end of the year. Tetrad executives will join Proxibid's board of directors.