Amazon allows users to submit reviews to the web page of each product. Reviewers must rate the product on a rating scale from one to five stars. Amazon provides a badging option for reviewers which indicate the real name of the reviewer (based on confirmation of a credit card account) or which indicate that the reviewer is one of the top reviewers by popularity. Customers may comment or vote on the reviews, indicating whether they found a review helpful to them. If a review is given enough "helpful" hits, it appears on the front page of the product. In 2010, Amazon was reported as being the largest single source of Internet consumer reviews.[123]
In March 2015, it was reported in The Verge that Amazon will be removing non-compete clauses of 18 months in length from its US employment contracts for hourly-paid workers, after criticism that it was acting unreasonably in preventing such employees from finding other work. Even short-term temporary workers have to sign contracts that prohibit them from working at any company where they would "directly or indirectly" support any good or service that competes with those they helped support at Amazon, for 18 months after leaving Amazon, even if they are fired or made redundant.[190][191]

Amazon Studios, which was founded in 2010 to compete with Hulu and Netflix in original programming, has become a powerhouse in Hollywood, taking home both Emmys and Oscars and growing into a staple of the modern entertainment diet of many Americans. Rounding out its position in digital media is the FireTV streaming device, which Amazon first launched in 2014 to compete with Apple, Roku, and other set-top box makers. The product has since been shrunk into a skinny HDMI stick — Amazon still sells the box and now also a small, square-shaped Fire TV Cube — and it remains one of the best-selling consumer electronics devices on
On January 22, 2018, Amazon Go, a store that uses cameras and sensors to detect items that a shopper grabs off shelves and automatically charges a shopper's Amazon account, was opened to the general public in Seattle.[54][55] Customers scan their Amazon Go app as they enter, and are required to have an Amazon Go app installed on their smartphone and a linked Amazon account to be able to enter.[54] The technology is meant to eliminate the need for checkout lines.[56][57][58] Amazon Go was initially opened for Amazon employees in December 2016.[59][60][61] In August 2018, the second Amazon Go store opened its doors.[62][63]
Brilliance Audio is an audiobook publisher founded in 1984 by Michael Snodgrass in Grand Haven, Michigan.[93] The company produced its first 8 audio titles in 1985.[93] The company was purchased by Amazon in 2007 for an undisclosed amount.[94][95] At the time of the acquisition, Brilliance was producing 12–15 new titles a month.[95] It operates as an independent company within Amazon.
In the course of a single generation, Amazon has grown from fledgling online bookseller to one of the most valuable and powerful corporations in modern history. The empire of CEO Jeff Bezos has grown so vast that critics, overseas regulators, and Washington politicians are all now wondering whether the company has become an unstoppable force, and what, if anything, is capable of reining in its reach. A recent spat with Sen. Bernie Sanders (D-VT) resulted in a minimum wage hike for tens of thousands of employees, but Amazon still operates largely without any meaningful checks on its power even as it aggressively expands into physical retail, the smart home, and warehouse and aviation robotics.
The Amazon sales rank (ASR) provides an indication of the popularity of a product sold on any Amazon locale. It is a relative indicator of popularity that is updated hourly. Effectively, it is a "best sellers list" for the millions of products stocked by Amazon.[134] While the ASR has no direct effect on the sales of a product, it is used by Amazon to determine which products to include in its bestsellers lists.[134] Products that appear in these lists enjoy additional exposure on the Amazon website and this may lead to an increase in sales. In particular, products that experience large jumps (up or down) in their sales ranks may be included within Amazon's lists of "movers and shakers"; such a listing provides additional exposure that might lead to an increase in sales.[135] For competitive reasons, Amazon does not release actual sales figures to the public. However, Amazon has now begun to release point of sale data via the Nielsen BookScan service to verified authors.[136] While the ASR has been the source of much speculation by publishers, manufacturers, and marketers, Amazon itself does not release the details of its sales rank calculation algorithm. Some companies have analyzed Amazon sales data to generate sales estimates based on the ASR,[137] though Amazon states:

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Vince Offer is a famous director, comedian, and commercial pitchman who made his name promoting the ShamWow. Using his natural charisma and his ability to add double entendres to his pitches, Vince turned the commercial into a major career move. The ShamWow itself is one of the most successful cleaning products on the market today, and Vince himself has gone on to pitch several other As Seen on TV products.