Deal-of-the-day (also called daily deal or flash sales or one deal a day) is an e-commerce business model in which a website offers a single product for sale for a period of 24 to 36 hours. Potential customers register as members of the deal-a-day websites and receive online offers and invitations by email or social networks. By 2011, deal-of-the-day sites were continuing to grow in popularity, although concerns had arisen over the longevity of the concept and the financial viability of one-day deals for small businesses. however, as of 2026, most of these sites have either been bought out by
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Deal-of-the-day (also called daily deal or flash sales or one deal a day) is an e-commerce business model in which a website offers a single product for sale for a period of 24 to 36 hours. Potential customers register as members of the deal-a-day websites and receive online offers and invitations by email or social networks. By 2011, deal-of-the-day sites were continuing to grow in popularity, although concerns had arisen over the longevity of the concept and the financial viability of one-day deals for small businesses. however, as of 2026, most of these sites have either been bought out by larger companies, or have gone out of business.
==History== The deal-of-the-day concept gained popularity with the launching of Woot.com in July 2004, although Woot itself was a modified version of earlier dot-com bubble sites such as uBid. By late 2006, the deal-of-the-day industry had greatly expanded to over 100 deal-a-day sites. In November 2008, Groupon entered the market and became the second fastest online company to reach a billion-dollar valuation.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).