Auction-style and flash sales business models appear to have lost some of their luster in recent years: eBay has pivoted its focus to a more marketplace-centered experience, and companies like Gilt Groupe dropped from a valuation of $1 billion to an acquisition price of less than $100 million. But as a category, online auction marketplaces are actually estimated to grow 7% through 2022, according to Technavio. Tophatter, an online platform that sells jewelry, electronics, fashion, beauty products, home goods and hobby supplies, is seeking to become a major part of that growth by linking the excitement of product discovery to its time-limited auctions. The Tophatter platform has more than 20 million users, with the company selling more than 100,000 items per day — and 85% selling within 90 seconds. Most of the 90-second auctions start at $1 and are designed to generate immediate excitement and competition among shoppers.