I’m currently close to finishing a bunch of server side stuff for an application that I’m developing. The next phase will be to overhaul the UI in order to improve usability and expose some new features that have been built into the application base. To this end I’ve been browsing various jQuery plugin directories looking for useful tools. Here are a selection of the ones that I’ve found, however I’ve not tried many of them yet so I can’t vouch for their reliability.

1. jQuery Multimedia Portfolio -Non obstrusive and accessible portfolio supporting multiple media : photos, video (flv), audio (mp3), will automatically detect the extension of each media and apply the adapted player.
2. Pagination- Create navigational elements, when you have a a large list of items you can display them grouped in pages and present navigational elements to move from one page to another.
3. Ingrid - ngrid is an unobtrusive jQuery component that adds datagrid behaviors (column resizing, paging, sorting, row and column styling, and more) to your tables.
4. jWYSIWYG - This plugin is an inline content editor to allow editing rich HTML content on the fly.
5. jTruncate in Action - jTruncate provides simple yet customizable truncation for text entities in your web page.
6. Drop Shadows - Interesting Drop shadow effect generated by a jQuery Plugin
7. jQuery: CSV to Table – This plugin loads a csv file and creates a table with the contents in that csv file.
8. jGrowl – a jQuery plugin that raises unobtrusive messages within the browser, similar to the way that OS X’s Growl Framework works.
9. Colorize – a jQuery plugin to add background color to alternate table rows, highlight a row/column on mouse over, and colorize a row/column when you click your mouse button over it. You can colorize as many table rows as you want. A repeat mouse click reverts the row to the original background color.
10. jqGrid – The grid is a Ajax-enabled JavaScript control that provides solution for representing tabular data on the web. Since the grid is client-side solution and loading data dynamically through Ajax callbacks, it can be integrated with any server side technology.
11. jQuery Feed Menu - allows users to click your feed icon and be presented with a list of feeds to choose from.
12. jqChart - Ajax & Draggable Simple Chart on Canvas+jQuery.
13. jquery.biggerlink - A jQuery plugin to make it really easy to enable the specified element/s to behave as a proxy for their first contained link.
14. Ajax Manager -Helps you to manage AJAX requests and responses (i.e. abort requests, block requests, order responses).
15. Lazyload-Delays loading of images in (long) web pages. Images below the fold (the ones lower than window bottom) are not loaded. When scrolling down they are loaded when needed.
16. jQuery Tag Suggestion- The same tag suggesting as-you-type support that del.icio.us is uses.
17. Jcrop – a quick and easy way to add image cropping functionality to your web application. It combines the ease-of-use of a typical jQuery plugin with a powerful cross-platform DHTML cropping engine that is faithful to familiar desktop graphics applications.