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  2. Review aggregator - Wikipedia

    en.wikipedia.org/wiki/Review_aggregator

    A review aggregator is a system that collects reviews and ratings of products and services, such as films, books, video games, music, software, hardware, or cars. This system then stores the reviews to be used for supporting a website where users can view the reviews, selling information to third parties about consumer tendencies, and creating databases for companies to learn about their ...

  3. Comparison shopping website - Wikipedia

    en.wikipedia.org/wiki/Comparison_shopping_website

    A comparison shopping website, sometimes called a price comparison website, price analysis tool, comparison shopping agent, shopbot, aggregator or comparison shopping engine, is a vertical search engine that shoppers use to filter and compare products based on price, features, reviews and other criteria. Most comparison shopping sites aggregate ...

  4. WalletHub - Wikipedia

    en.wikipedia.org/wiki/WalletHub

    WalletHub provides financial product comparison tools [24] for credit cards, car insurance, and bank accounts. The company has produced a wide range of research reports, including a quarterly credit card debt report and reports comparing cities and states in financially relevant categories.

  5. Health Star Rating System - Wikipedia

    en.wikipedia.org/wiki/Health_Star_Rating_System

    The Health Star Rating System (HSR) is an Australian and New Zealand Government [1] initiative that assigns health ratings to packaged foods and beverages. [2] The purpose for the Health Star Rating is to provide a visual comparison of like for like products, to assist consumers into distinguishing and choosing the healthier options.

  6. Consumer Reports - Wikipedia

    en.wikipedia.org/wiki/Consumer_Reports

    Consumer Reports' flagship website and magazine publishes reviews and comparisons of consumer products and services based on reporting and results from its in-house testing laboratory and survey research center. CR accepts no advertising, pays for all the products it tests, and as a nonprofit organization has no shareholders.

  7. Consumers' Checkbook - Wikipedia

    en.wikipedia.org/wiki/Consumers'_Checkbook

    Consumers' Checkbook/Center for the Study of Services (doing business as Consumers’ CHECKBOOK) is an independent, nonprofit consumer organization.It was founded in 1974 [1] in order to provide survey information to consumers about vendors and service providers.

  8. PowerReviews - Wikipedia

    en.wikipedia.org/wiki/PowerReviews

    The company's software allows product ratings and reviews, answering customer questions, product sampling, images, videos, and social content, and analytics tools to examine the impact of user-generated content and to benchmark product performance. PowerReviews is headquartered in Chicago with an office in London.

  9. Collaborative filtering - Wikipedia

    en.wikipedia.org/wiki/Collaborative_filtering

    Because collaborative filters recommend products based on past sales or ratings, they cannot usually recommend products with limited historical data. This can create a rich-get-richer effect for popular products, akin to positive feedback. This bias toward popularity can prevent what are otherwise better consumer-product matches.