Find a very useful overview of numerous “cheat sheets” at Smashing Magazine’s website. CSS, XHTML, C# and Python are only a few languages which are covered here.
The Apache Cheat Sheet is quite useful:
or the Regular Expressions cheat sheet: 
Any color you like
Cool AJAX tool of the day: Choose any color you like and find photos with these colors on Flickr.
Visit Flickr Color Selectr.
the web developer’s handbook
Check out Vitaly Friedman’s “the web developer’s handbook“. It’s an awesome collection of very useful links to sites about CSS, DOM, AJAX, design etc.
Present your photos smoothly: Thickbox
ThickBox is a webpage UI dialog widget written in JavaScript on top of the jQuery library. Its function is to show a single image, multiple images, inline content, iframed content, or content served through AJAX in a hybrid modal.
Link: Thickbox 2.0
See also our Code Poetry post about JQuery.
qooxdoo, a powerul AJAX GUI Framework
qooxdoo is one of the most complete open source AJAX frameworks. It is an LGPL-licensed multipurpose framework that includes support for professional JavaScript development, a state-of-the-art GUI toolkit and high-level client-server communication.
Link: qooxdoo.org
Program AJAX Pages the WinForms way
I accidently ran into Visual WebGUI as I searched google for the words “AJAX and WinForms“. The concept is pleasing: just program application like you are used to when program WinForm applications. The author calls this technique the WOW model: WinForms Over The Web. The output is a web application which makes heavy use of AJAX and has a Windows look and feel. At the time of this writing, the framework only supports Internet Explorer. Code
Project offers two tutorials: Developing your first Visual WebGui application and Developing a Visual WebGui gateway.
Globfx’s Neoswiff follows a similar approach, but compiles Flash .swf Files, Client/Server logic has to be done “by hand”. With Visual WebGUI you can program Client/Server AJAX apps just using Visual Studio as design tool. When Firefox support comes, this is definately a technology to evaluate.
Flex Style Explorer
The Flex Style Explorer demonstrates the CSS capabilities of Adobe’s Flex 2 Framework.
Quite impressive.
Go to Flex Style Explorer.
The professional tool in web digital imaging
Here’s everything you need to complete the
most common photo tasks! Quickly rotate, resize, and crop photos to get
the exact composition and size you need.
This is a great AJAX application.
The AJAX response: XML, HTML, or JSON?
This is an interesting article about the “ideal” output format for the AJAX response on Quirksmode.
I like the JSON approach.
jQuery – New Wave Javascript
jQuery is a new type of Javascript library. It is not a huge, bloated, framework promising the best in AJAX – nor is just a set of needlessly complex enhancements – jQuery is designed to change the way that you write Javascript.$("p.surprise").addClass("ohmy").show("slow");The above code snippet looks for all paragraphs that have a class of ‘surprise’, adds the class ‘ohmy’ to them, then slowly reveals them. Click the ‘Run’ button to see it in action!
Commands Map
There are a lot of similarities between jQuery and the well known prototype library. JQuery offers an Tutorial for Using Prototype and jQuery Together. Don’t forget to checkout the demo section.
The Event Selector Showdown on the jQuery blog is pretty amazing, too.
[via jquery.com]
