JavaScript libraries
Touch enabled jQuery plugin that lets you create beautiful responsive carousel slider

JavaScript libraries
jQuery The Write Less Do More JavaScript Library

Widgets
AddThis is a social bookmarking service that can be integrated into a website with the use of a web widget

JavaScript libraries
slick is a responsive carousel jQuery plugin that supports multiple breakpoints CSS3 transitions touch events swiping much more

Ecommerce
The World Wide Web Consortium W3C develops standards and guidelines to help everyone build a web based on the principles of accessibility internationalization privacy and security

JavaScript libraries
Matter js is 2D rigid body JavaScript physics engine for the web

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