pickadate.js is a mobile-friendly, responsive, and lightweight jQuery date & time input picker.   Some highlights include support for jQuery 1.7 and up, touch & keyboard friendliness, BEM style class naming, LESS based stylesheets, and a Grunt based build system. You can customize an input with dropdown selectors, date formats, time intervals, time formats, and lots more.  

Rondell is a jQuery plugin for displaying galeries and other content the way you want.  

Chosen is a jQuery plugin that makes long, unwieldy select boxes much more user-friendly.  

Acorn Media Player is a HTML5 media player with a focus on accessibility and customization.     Acorn Media Player - Features: Accessibility Acorn Media Player is built with accessibility in mind. It provides full keyboard control using standard tab-based navigation, screen-reader (and other AT) support, accessible themes, and other accessibility tweaks. Closed-Captions This is yet no native support for closed captioning on HTML5 , but that shouldn't stop you from providing them. It sup

SocialCount is a small jQuery plugin for progressively enhanced, lazy loaded, mobile friendly social networking widgets.  

This date range picker component for Bootstrap creates a dropdown menu from which a user can select a range of dates.    If invoked with no options, it will present two calendars to choose a start and end date from. Optionally, you can provide a list of date ranges the user can select from instead of choosing dates from the calendars. If attached to a text input, the selected dates will be inserted into the text box. Otherwise, you can provide a custom callback function to receive the selectio

jQuery Validation Plugin makes simple clientside form validation easy, whilst still offering plenty of customization options. It makes a good choice if you're building something new from scratch, but also when you're trying to integrate something into an existing application with lots of existing markup. The plugin comes bundled with a useful set of validation methods, including URL and email validation, while providing an API to write your own methods. All bundled methods come with default erro

Social is a jQuery plugin for listing social profiles and sharing any page with 46 icons.    

jqtimeline is a lightweight, simple and elegent timeline plugin for jQuery to show a set of important events on a timeline. Data input is a simple json arrary of timeline events. This plugin can be easily integrated with any other jQuery plugins. Can be use to create Social apps, showing blog timeline, social posts timeline etc.    

Facebook jQuery Helper is a simple jQuery plugin that helps you add the Facebook Javascript SDK to your site asynchronously. It also allows you to to use jQuery events to run code before and after the Facebook's code is initialized.