Add social proof by linking to famous names or brands

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An easy way to show social proof for a product is to link the product to a more famous name (if true) like this:

[Your Product] + Used by, Mentioned by, Trusted by, Bought by, Official brand of, Got results for... + [Big Name]

HouseOfRave stuck these logos at the bottom of an eCommerce site on every product page, and it resulted in a 21% boost to sales. "The number of sales increased, but the bigger money came in because the SIZE of the sales increased. Many larger clients were eased to know we’d worked with well-known companies."