In what ways do these websites contribute to price competition?

The Internet has quickly taken comparison shopping to a new level. Several websites such as bizrate.com, pricescan.com, and mysimon.com have emerged boasting that they can find the consumer the best deal on any product. From computers to watches, these sites offer unbiased price and product information to compare virtually any product. Users may read reviews about products as well as provide their own input from personal experience. Some of these sites also offer special promotions and incentives in exchange for user information.