To learn more visit:
https://www.wix.com/velo?utm_campaign...

Watch how you can collect and display user-generated content as comments on your website. In this video, you’ll learn how to create a database to store and manage visitor comments. Then, add user input elements to collect visitor reviews and a repeater element to display them. Finally, see how your repeater automatically updates with visitor reviews, displaying content from your database.

About Velo:
Velo is an open development platform that lets you build advanced web applications. With serverless computing and hassle-free coding, you can manage all your content from integrated databases, add your own code in the built-in IDE or work in your own environment, and connect to 100s of APIs. Plus, you get total design freedom from the Wix Editor and optimized business applications—all in one integrated platform. Build, manage, deploy and scale your next web project with Velo.

Velo—Accelerated Development of Web Applications

To learn more about creating tracking parameters for custom events visit:
https://www.wix.com/code/reference/wi...

About Wix:
Create a stunning, professional website.

With Wix, the possibilities are endless. You can create any kind of website for yourself or others. Choose a template or start from scratch. Push the limits with advanced design features. Add your own fonts and bring your site to life with video backgrounds, parallax scroll, retina ready image galleries, and more. Wix offers countless professional features - from an online booking system and online store to a beautiful blog and SEO tools.

http://www.wix.com/
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http://en.wikipedia.org/wiki/Wix.com