Image galleries

http://www.twospy.com/galleriffic/ A jQuery plugin for rendering rich, fast-performing photo galleries. Galleriffic is a jQuery plugin that provides a rich, post-back free experience optimized to handle high volumes of photos while conserving bandwidth

http://galleria.io/ Galleria is a JavaScript image gallery framework that simplifies the process of creating beautiful image galleries for the web and mobile devices.

http://www.jacklmoore.com/colorbox/ Colorbox - a jQuery lightbox
A lightweight customizable lightbox plugin for jQuery

http://wowslider.com/ The most strong and popular web design trend over last couple of years is a sliding horizontal panels also known as Sliders or Carousels. It's a very effective method to increase the web site usability and engage the user.

http://coffeescripter.com/code/ad-gallery/ AD Gallery, gallery plugin for jQuery
A highly customizable gallery/showcase plugin for jQuery.

http://demo.tutorialzine.com/2011/09/html5-file-upload-jquery-php/ css article about html5 file uploads article link is http://tutorialzine.com/2011/09/html5-file-upload-jquery-php/

http://dimsemenov.com/plugins/royal-slider/ If you don't mind paying to get decent quality, it is worth looking into plugins sold on the CodeCanyon. RoyalSlider is a good example that can save you some hassle. The developer of this component clearly cares about code size, documentation quality as well as mobile support.

http://www.lokeshdhakar.com/projects/lightbox2/ Lightbox is a simple, unobtrusive script used to overlay images on top of the current page. It's a snap to setup and works on all modern browsers.