DealDash by William Wolfram to create, is a well-known auction website. It currently has nearly one million users, and its revenue is still growing at an alarming rate four times. In DealDash, a commodity at a low price auction, put on the website of the buyer bid, if the offer after 10 seconds, no one bid to bid to all, and one bid will automatically 10 seconds delay, the last bid people take goods. To acquire goods is usually higher than the retail store sales price by at least 60%, so this auction bidding to get a lot of consumers.