rlightbox is a jQuery UI mediabox that can display many types of content such as images, YouTube and Vimeo videos. It has many unique features like Panorama and Live Re-size. Like other jQuery UI widgets, it is ThemeRoller ready.   rlightbox - Features: Sets Set is a group of images, Youtube, Vimeo, or Flash swf videos, or a mix of them all. There may be many sets on a page and elements belonging to a set does not have to be put one after another in a container. YouTube support rlightbox

Highlight.js is a syntax highlighter written in JavaScript. It works in the browser as well as on the server. It works with pretty much any markup, doesn't depend on any framework and has automatic language detection.   Highlight.js - Features: 92 languages and 49 styles (live demo) automatic language detection multi-language code highlighting available for node.js works with any markup compatible with any js framework  

jQuery.localScroll will animate a regular anchor navigation. It will allow your visitors to navigate your site with a smooth scrolling effect.   Each time a link is clicked, the element you decide(can be the whole screen), will gradually scroll to the targeted element, instead of "jumping" as it'd normally do.  

Mikes Modal Library is a javascript library to work and behave much like Facebook's Photo viewing experience. Clicking an individual photo will bring up the photo gallery window. It is designed to be used on social networking sites where a photo is on the left and some content is meant for the right side. The image scales to the largest size possible while still fiting in your monitors resultion.  

jQuery lightGallery is a lightweight jQuery lightbox gallery for displaying image and video.   jQuery lightGallery - Features: Responsive layout. Touch support for mobile devices. CSS transitions with jQuery fallback Youtube Vimeo Video Support Slide and Fade Effects Chrome, Safari, Firefox, Opera, IE7+, IOS, Android, windows phone. Image captions and descriptions Multiple sliders on the same page Easily customizable via CSS and Settings Lightweight (7kb) (minified) Thumbnail suppor

jQuery.panelSnap is a jQuery plugin that provides snapping functionality to a set of panels within your interface. It snaps to blocks of content after scrolling.  

Smoothbox is a lightweight, responsive and simple jQuery lightbox plugin.   Smoothbox - Features: Lightweight  Preloads images Built in gallery for multiple items CSS3 transitions for smoother effects Responsive image sizes  

Bare Bones Slider is a minimalistic jQuery slider. The biggest strength of this slider isn't what it does; it's what it doesn't do. By default, there's very little bloat so developers can add new functionality without having to undo the plugin's "helpful" features. Beginners can use pre-coded options, while experts can control it using public methods.   Bare Bones Slider - Features: Loads images on demand Allows you to make your own pagination and controls Public methods that you can call o

jQuery ContentHover Plugin is a small jQuery plugin that helps you show some hidden content on top of an element when the mouse hovers over it. There are options to choose how your hover effect would appear, like fade in or slide in from any direction, you can change the opacity of the overlay etc.  

Vanillabox is a simple, modern lightbox-like plugin for jQuery. You can easily setup your image gallery with this plugin.   Vanillabox - Features: Simple design, no decoration. It focuses your content. Suitable for modern browsers that include mobile ones. It works nicely whether or not to zoom a page. Free for commercial use. It's licenced under the MIT License.