Websites using Backbone.js 
Preview
Here is 25 of 510,063 websites using Backbone.js.
You can filter as you like (only .co.uk tld with 2.x version for example).
You'll find alexa rank, tool version, TLD, lang, emails and the main contact url.
Buy the report to download the CSV/XLS file
| Alexa | Domain | Version | Contact | |
|---|---|---|---|---|
| Alexa | Domain | Version | Contact |
jQuery
Modernizr
jQuery UI
Underscore.js
Lightbox
prettyPhoto