Check out the Mighty Slider API.
FME Magento Testimonials and Reviews Extension
FME Product testimonials extension allows you to show customer reviews on product page and home page using an elegant slider. This module also enables users to like/unlike, comment and rage testimonials. User reviews are shown in threaded view. This module creates a separate landing page for reviews, as well as each one has its own page. Learn more about the features on product page.
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