Designing simple navigation using jQuery
Designing components using Ext JS
Building a tab navigation using Dojo
Building a chart application using YUI library
Loading dynamic content using jQuery slider
Creating an Ajax shopping cart using MooTools
Building an Ajax login form using prototype.js
Creating an autosuggest control
Uploading multiple files using Ajax
Creating a five-star rating system
Building a PHP Ajax contact form with validation
Building Pagination using PHP and Ajax
Creating Autocomplete from a database
Building a tab navigation using jQuery
Growing textarea using the jGrow plugin
HTML replacement of the select dropdown
Improving date selection with Datepicker
Adding visual effects and animations
Building an Ajax chat system using the Comet technique
Decoding CAPTCHA through canvas
Debugging with Firebug and FirePHP
Debugging with the IE developer toolbar
Avoiding the framework $ conflict
Using the anonymous function of JavaScript
Fixing memory leaks in JavaScript
Getting optimization tips with YSlow
Speeding up JavaScript delivery through automatic compression and browser caching
Triggering JavaScript early/on DOM load
Optimizing Ajax applications automagically through Apache modules/Google mod_pagespeed
Implementing Best Practices to Build Ajax Websites
Avoiding HTML markup-specific coding
Building SEO-friendly Ajax websites
Preserving browser history or un-breaking the browser's back button
Implementing comet PHP and Ajax
Creating and consuming web services using PHP
Translating text using Google Ajax API
Searching a location within a Google Map
Searching within XX km. radius of Google Maps with markers and Info window
Finding a city/country using IP address
Converting currencies using Ajax and PHP
Building a touch version of a website (with jQTouch)
Leveraging HTML5 features in iPhone Ajax
Building native apps with PhoneGap