Woopra is a feature-rich free web-tracking and analytics tool that analyzes your website in real time.

Using Woopra, you can view visitor activity in detail, tag visitors to realize them in their next visits, instant-chat with visitors and even get notified from the site activities that you set.

For developers, Woopra provides a full featured API that allows extracting a website’s data into several common web 2.0 formats, making it useful for use within your own application.

This free desktop site analysis tool is definitely worth to try.

Vaga is an icon set containing 60 quality, semi-transparent PNG icons.

Icons in the set are very suitable to be used within web applications as it includes user icons, shopping icons, add / remove icons and more.

Fell free to use the icons in commercial projects and make sure you check the license agreement before use.

Similar to Ext Grid, but built on jQuery, Flexigrid is a feature rich data grid with resizable columns and a scrolling data to match the headers, plus an ability to connect to an xml based data source using AJAX to load the content.

Features of this jQuery data grid plugin:

• Resizable columns
• Resizable height
• Sortable column headers
• Cool theme
• Can convert an ordinary table
• Ability to connect to an ajax data source (XML only)
• Paging
• Show/hide columns
• Accessible API
• More..

Google AJAX Translation API is a library for translating words or sentences from one language to another using Google Translate database.

Check this example:

google.language.translate(‘Beaucoup’, ‘fr’, ‘en’, function(result) {
  alert(result.translation);
});

This Google AJAX Translation API example simply translates "Beaucoup" from French to English.

A great feature of the API is getting the language of the input and best of all the accuracy ratio of the results.

Languages supported are limited with the ones in the Google Translate service.

Similar to Lightbox, FancyBox, a jQuery powered image zooming script, zooms the images with very nice loading and zoom-in / zoom-out effects.

Features:

• Automatically scales large images to fit in window
• Adds a nice drop shadow under the full-size image
• Image sets to group related images and navigate through them

Basic usage:

$(function() {

    $("div#test_zone a").fancybox();

});

FancyBox works with the major web browsers and can be configured for different closing effects.

Ajax-S is an ajaxed, nice looking and easy to use slideshow application.

It is similar to Eric Meyer’s S5 (another slideshow application) except a major difference, Ajax-S calls the data from a XML file rather than HTML which makes the application more portable and user-friendly for anyone without HTML knowledge.

Ajax-S accepts HTML and XHTML natively (no need for escaping any characters). Navigation of the application is pretty simple; mouse clicks, keyboard navigation bottons or the drop-down list in the application are the choices. And, we can get a printable-version with a click.

MP3 Player is an open source flash MP3 player which can be customized and integrated into websites easily.

It has 5 different versions that lets you only use a "play button" or a player which lets users to choose tracks from multiple files. Here are the versions:

• mini
• normal
• maxi
• multi
• js

Smart Lists, a light-weight (8KB) Prototype-script.aculo.us framework extension, converts HTML lists into categorized, paginated lists. And, It does not require a database or server-side script.

It can be applied to existing lists with very little effort, providing a significant bump in usability.

Smart List is easily configurable with different hide/show effects for items and changing pages, speed of the effects and number of the items for paging.

Besides supporting all the major modern browsers, it degrades gracefully for unsupported browsers.

Input masks are handy for better form handling and creating more user-friendly forms.

Masks for different input types can be created easily with the tools below.

iMask

iMask is an open source (free) javascript tool for creating input and textarea masking. It is built on Mootools, supports keyboard control and dynamic charset definition.

Masked Input Plugin for jQuery

This is a masked input plugin for the jQuery javascript library. It allows a user to more easily enter fixed width input where you would like them to enter the data in a certain format (dates,phone numbers, etc).

Password Field Image Mask

A nice JavaScript input mask which helps displaying the password field characters as images.

dFilter

A tiny JavaScript for input masking.

JavaScript Mask API

A simple yet nice input mask.

JavaScripTools

JavaScripTools is a set of JavaScript components, functions and classes which also includes a powerful input mask library.

Typecast – The Input Field Library

Typecast is an input field augmentation library. When complete it will add autocomplete, suggest and realtime character masking ability to the standard HTML input field.

ProtoFlow is an open source content viewing application built with Prototype & script.aculo.us which functions similar to the famous iTunes Cover Flow.

You can browse through the content (it supports all the HTML elements) with mouse clicks or a JavaScript slider.

It is mentioned that the application may have more features in the future like auto-play and image reflection.