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Ranker

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Ranker

Ranker [1] is a social consumer web platform designed around collaborative and individual list-making and voting. All lists on Ranker are powered by linked datasets to power “connected listmaking” across over 7 million rankable items on many different verticals and topics.

Ranker launched in August, 2009, and has since grown to over 5.8 monthly unique visitors and over 21 million monthly page views, perQuantcast. As of May 2013 Ranker’s US traffic was ranked at 498 on Quantcast.[1] Ranker also garners significant traffic from the mobile web, ranking 92 in the US on Quantcast.

The site was founded by serial entrepreneur Clark Benson whose previous site, [3]

Ranker has many lists that reflect an individual user's opinion, but also features "Ultimate Lists" that are determined by a combination of users ranking their version of a given topic, and individuals voting positively or negatively on items on the list. Ranker states that 15% of the visitors vote on an average of 10 items per ranking [3] While the Ranker site explains that the Ultimate List rankings weigh list inputs heavier than votes, "while every vote counts, your ranked lists count a lot more," they don't appear to offer any additional insight into this algorithm. Ranker's Ultimate lists have been cited in sources like Forbes, Motley Fool, and VentureBeat.

The Ranker platform is designed to collect individual user votes and track them, using cookies, across various lists. Per the company's blog,[4] this allows the company to assemble a taste graph for people who have voted on lists, as opposed to the sort of social graph that sites like Facebook can assemble using their users' personal data. Ranker has also used their taste graph to perform Factor Analysis, a way of looking deeper into user voting trends (for example, the connections between movies that a certain group of people all tagged as "bad.") [5]

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