Pronto is a jQuery plugin for faster page loads.   Building on concepts like 

SergeLand Image Zoomer is a jQuery plugin for zooming images with stylish and smooth magnifying glass effects.  

Quovolver is a jQuery plugin for revolving multiple testimonials or quotes in your document. Although, it can also be used to cycle

jQuery googleslides is a simply jQuery plugin that displays your Google Photos, including Picasa and Google+ albums. There

gmaps.js allows you to use the potential of Google Maps in a simple way.  

ScrollStory is a jQuery UI widget for building simple, scroll-based pages and interactions. Key features include:

jQuery++ provides jQuery's missing utils and special events. It is a MIT licensed collection

jQuery Price Format is a plugin to format input text fields as prices.  For example, if you type 123456, the plugin will update it to

MagicSuggest is an auto-suggest combo with bootstrap theme using jQuery. It is a highly flexible auto suggest combo box

JResponsive is a simple jQuery plugin that allows you to add a dynamically-resized layout to any page or element, customize the layout