GalleryView is a jQuery plugin for creating a wide variety of gallery types, including carousels, sliders and slideshows.

DateTimePicker is a jQuery date and time picker plugin. You can use this plugin to unobtrusively add a datetimepicker, datepicker

jVectorMap uses only native browser technologies like JavaScript, CSS, HTML, SVG or VML. No Flash or any other proprietary browser plug-in is required

YoxView is a free Lightbox-type media and image viewer jQuery plugin. It's easy to use and feature-rich.  

Ion.Calendar is a jQuery-calendar and datepicker, based on powerful library to work with time - Moment.js.   

TopUp is an easy to use Javascript library for unobtrusively displaying images and webpages in a Web 2.0 approach of popups. The library is jQuery

Trip.js is a jQuery plugin that can help you customize a tutorial trip easily with more flexibilities. It supports lots of useful stuffs

jQuery.pin is great for pinned navigations and anything you want to stick. It pins any element within a container. Easily disable it

Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser and offers an integrated solution to work with

Smooth Div Scroll is a jQuery plugin that scrolls content horizontally left or right. Apart from many of the other scrolling plugins