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Hot or Not launched in 2000 as a simple photo-rating site and became one of the first viral web products, reaching 30,000+ IP addresses on day one and becoming a top-20 most trafficked website within two months. The founders stumbled into a sustainable freemium business model (converting 5-20% of users to paid dating features) that generated $10,000-$20,000+ daily revenue by the early 2000s, ultimately scaling to $6M in annual earnings before selling around 2008.