Smoopa: This price-comparison tool uses crowdsourcing to find bargains. Suppose you’re out shopping for a portable hard drive. You find a model you like, scan the bar code, select the store you’re in, and enter the price. Smoopa compares that price to all in-store and online prices (including shipping costs) in its database to let you know if you’re getting the best deal. The price you report then joins Smoopa’s database, and you can earn reward points for participating.
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