Modernizr is an open-source JavaScript library that helps you build the next generation of HTML5 and CSS3-powered websites

Use the new and shiny responsibly.
Look up HTML5, CSS3, etc features, know if they are ready for use, and if so find out how you should use them – with polyfills, fallbacks or as they are

When Can I Use tells you the browser support story, while Modernizr gives you the power of feature detection. HTML5 Please helps you out with recommendations for polyfills and implementation so you can decide if and how to put each of these features to use.

The recommendations below represent the collective knowledge of developers who have been deep in the HTML5 trenches. We hope they serve you well.

The Web Workers specification defines an API for spawning background scripts in your web application. Web Workers allow you to do things like fire up long-running scripts to handle computationally intensive tasks, but without blocking the UI or other scripts to handle user interactions. They're going to help put and end to that nasty 'unresponsive script' dialog.

Google:
HTML5 introduces many cutting-edge features that enable developers to create apps and websites with the functionality, speed, performance, and experience of desktop applications. But unlike desktop applications, apps built on the web platform can reach a much broader audience using a wider array of devices. HTML5 accelerates the pace of your innovation and enables you to seamlessly roll out your latest work to all your users simultaneously.

The Endless Mural: An Interactive Art Website Built In HTML5:

This page explains how to participate in the W3C HTML5 test suite effort. This effort is managed by the HTML5 test suite task force, part of the HTML Working Group.

Compatibility tables for support of HTML5, CSS3, SVG and more in desktop and mobile browsers.

“HTML5 is a badge for the way the Web is changing”
– James Pearce, Head of Mobile Developer Relations, Facebook

HasCanvas is a tool for creating and sharing Processing sketches and runs on John Resig’s Processing.js.

This book is definitely an introductory tutorial, and by no means a reference. Not all of the new HTML5 elements are covered, nor is CSS3 provided full coverage. The repetition of concepts may aggravate experienced or impatient programmers: For people with some experience with these technologies, and for people who readily glean information from technical books upon first exposure to the given concept, the frequent repetition in this book would border on tiresome, if it weren't presented so pleasantly, oftentimes with humor. On the other hand, the Head First books are predicated on the approach of presenting information in different formats, to maximize learning. Any newbie should appreciate this volume's clear explanations, even if they are presented multiple times, but differently. Also, there is plenty of testing of one's knowledge, to reinforce what has been learned.

As you may have heard, Adobe (ADBE) last week admitted defeat in its long-running battle with Apple (AAPL) over Adobe's Flash technology. As Apple's CEO, the late Jobs barred Flash from Apple's iPhone and other handheld devices and famously wrote an open letter last year explaining why.

You could hardly ask for a more ringing endorsement of the future of HTML5 and a Web based on open, common standards than Adobe and Microsoft's near-simultaneous leaks announcing the impending disconinuation of their respective rich media browser plug-ins, Flash and Silverlight.

In a stunning move, Adobe is apparently ready to throw in the towel when it comes to getting Flash to run in mobile browsers.

A JavaScript Sound API supporting MP3, MPEG4 and HTML5 Audio.

SoundManager 2 makes it easier to play audio using JavaScript.
Using HTML5 and Flash, SoundManager 2 provides reliable cross-platform audio under a single JavaScript API.

We were surprised and saddened when Mark Pilgrim decided to retire from the internet and take his writing, including “Dive into HTML5” with him.

iGenApps takes you through an easy step-by-step set of screens to create your own Apps straight from your iOS or Android device without any programming.

If you have some programming skills with HTML and/or JavaScript, particularly with Sencha, you will be able to enhance your generated applications for further customization.

starting html/css template. so much goodness baked in by default

Adactio is the online home of Jeremy Keith, a web developer and author living and working in Brighton, England.

Muse is a freeform tool targeted to graphic designers and artists whose work has thus far appeared only in print, but who want to create interactive websites without having to deal with code.

Aquafadas has unveiled a new Mac application that lets developers more easily create website animations that can run simultaneously on both Flash-oriented desktop browsers and iOS devices that run HTML5.

Adobe is far from abandoning Flash, and by offering tools for developing with HTML5, it could help maintain its position in Web development. Edge also highlights some of the things that Flash can do, but HTML5 still can't.

The search engine honors Alexander Calder with a twirling Google logo. But just wait for what comes next.

Canvas, a HTML5 element that can be used for rendering graphics, animation, graphs, photo compositions or any other visual objects on the fly by using JavaScript. In this tutorial, we will describe how to implement canvas in your web projects.

HTML Lint is a tool that makes sure your code looks good. While XHTML was very strict with syntax HTML 5 is more lenient like previous versions of HTML, which means keeping consistent code styles will become more difficult. Validating is not good enough anymore.

Google on Tuesday unveiled Swiffy, a free tool for developers to convert some Flash files (.SWFs) into HTML5 code.

Mozilla is working on a project that will add PDF rendering to Firefox using HTML5 and JavaScript, eliminating the need for users to run Adobe's own plug-in.

If Mozilla follows through on its plans, it would make Firefox the second major browser -- after Google's Chrome -- to offer in-browser PDF rendering.

LucidChart is an HTML5-based visual collaboration tool that makes drawing diagrams fast and easy. Also work together with an unlimited number of others to create and edit diagrams in real time, with changes merged and synced instantaneously -- great for team collaboration and working with clients.

The next-generation Web Editor
based on the rendering engine of Firefox

Komodo 6 Adds HTML5 and CSS3 Support

Living Standard — Last Updated 22 January 2011

You can take part in this work. Join the working group's discussion list.
Web designers! We have a FAQ, a forum, and a help mailing list for you!

we are today announcing two changes:

1. The HTML specification will henceforth just be known as "HTML", with the URL http://whatwg.org/html.

2.The WHATWG HTML spec can now be considered a "living standard".

HTML5, the evolving specification that describes modern Web development technology, has proven to be a hit. It has the backing of Apple, Google, Microsoft, Mozilla, and Opera, the major Web browser vendors. Apple and Google even have Web sites specifically to promote HTML5.
Yet only a few days after the World Wide Web Consortium (W3C), the standards body that oversees the HTML specification, introduced a new HTML5 logo to promote next-generation Web technology, a related standards group, the Web Hypertext Application Technology Working Group (WHATWG) declared that HTML5 should henceforth be referred to simply as HTML.

We are passionate about the web, learning, and craftsmanship. We want you, as web designers and developers, to be successful in your careers. We feel, though, that W3Schools is harming the community with inaccurate information. Like any other authoritative educational resource, W3Schools should both hold itself to, and be held to, the highest standards.

We hope we can illuminate why W3Schools is a troublesome resource, why their faulty information is a detriment to the web, and what you (and they) can do about it.

The information is pretty much just a copy of what is found in the WHATWG specs, just condensed and hopefully a bit easier to read. There are virtually no explanations, however, and no examples other than some graphics for compositing values and a few other things (the appearance of which is very much inspired by those found in Mozilla's examples). So, it's basically just a listing of the attributes and methods of the canvas element and the 2d drawing context.

Master web designer Dan Cederholm (SimpleBits, Dribbble) shares the when, why, and how of designing with CSS3 in real browsers, right now.

Eight HTML5 Drafts Updated

At the end of December, you read Andrew’s list of the hottest technologies, tools, and resources to come from 2010. Today, we’re going to look forward, and take a peek at some exciting emerging technologies and trends.

The Rainbow experiment aims to provide native audio and video recording capabilities in the browser through a JavaScript API - to enable multimedia content creation on the web!

The next generation of online tower defense games has arrived courtesy of a concept-to-completion effort by legendary Flash innovator Grant Skinner. Developed entirely in HTML5, Pirates Love Daisies works on all modern browsers and sets a new standard for the highly addictive genre.

WebGL is a cross-platform, royalty-free web standard for a low-level 3D graphics API based on OpenGL ES 2.0, exposed through the HTML5 Canvas element as Document Object Model interfaces.

This is a book about the modern browser and the current state of internet related technologies. Its aim is to demystify the terms (and in parts, the philosophies) behind the technology, making them accessible for people who are interested in knowing what goes on when they open their browser and interact with the many websites/apps that they rely on everyday.

Hi, I'm Paul, a Creative Technologist from London
with an equal passion for both design & code.

ASK KEN™ is sort of a Node-Link diagram that allows to visually navigate through interconnected topics provided by the Freebase Service. It takes advantage of the latest HTML5 features by using the canvas element for drawing.

The professional, open source development tool for the open web
Develop and test your entire web application using a single environment. With support for the latest browser technology specs such as HTML5, CSS3 and JavaScript; and Ruby, Rails, PHP & Python on the server side.

HTML5 is changing the look of Web video, but can it edge out Flash?

HTML5 Boilerplate is the professional badass's base HTML/CSS/JS template for a fast, robust and future-proof site.

The HTML5 spec is 900 pages and hard to read. HTML5 for Web Designers is 85 pages and fun to read. Easy choice.

a small group of web developers and designers have been hard at work perfecting a method to insert rich typography into web pages without sacrificing accessibility, search engine friendliness, or markup semantics. The method, dubbed sIFR (or Scalable Inman Flash Replacement), is the result of many hundreds of hours of designing, scripting, testing, and debugging by Mike Davidson (umm, that’s me) and Mark Wubben.

A vocabulary and associated APIs for HTML and XHTML

Abstract

This specification defines the 5th major revision of the core language of the World Wide Web: the Hypertext Markup Language (HTML). In this version, new features are introduced to help Web application authors, new elements are introduced based on research into prevailing authoring practices, and special attention has been given to defining clear conformance criteria for user agents in an effort to improve interoperability.

HTML5 is a new version of HTML and XHTML. The HTML5 draft specification defines a single language that can be written in HTML and XML. It attempts to solve issues found in previous iterations of HTML and addresses the needs of Web Applications, an area previously not adequately covered by HTML.

The project demonstrates progress being made to support high-performance graphics in Web applications.

There’s a belief within the web standards community that Flash is part of a different world. While all approaches have limitations and drawbacks, Flash has been scorned to the point that many refuse to acknowledge its benefits. Ultimately, this has led to the creation of a virtual separation among web designers; those who use Flash use it exclusively (leading to a saturation of full-screen, “Skip Intro”-rich Flash sites on the web) and those who don’t ever give it a second thought

Lack of Flash in the iPad (and before that, in the iPhone) is a win for accessible, standards-based design. Not because Flash is bad, but because the increasing popularity of devices that don’t support Flash is going to force recalcitrant web developers to build the semantic HTML layer first.

I love this whole unfolding future-of-Flash saga because it’s a wonderful mix of politics and technology. It’s complex and multivariate, but not too complex to get a handle on the basic gist

Switzerland-base development and design firm Jilion recently launched a site demonstrating their latest project, SublimeVideo, an HTML5-based video player. Although not publicly available as of yet, this sleek, fast, and plug-in free video player shows off the potential of the upcoming web standard HTML5.

In this tutorial, we are going to build a blog page using next-generation techniques from HTML 5 and CSS 3. The tutorial aims to demonstrate how we will be building websites when the specifications are finalized and the browser vendors have implemented them. If you already know HTML and CSS, it should be easy to follow along.

HTML 5 improves interoperability and reduces development costs by making precise rules on how to handle all HTML elements, and how to recover from errors.

ref:Robert Walliczek, googlybash24

For a brief period today, there were no outstanding e-mails or bugs on the specs, and so I took that opportunity to transition us here at the WHATWG to the next stage of HTML5's development: Last Call! This affects three specs at the WHATWG:

seeks to elaborate on a hand-picked Selection of features from the HTML5 specification and other fine Standards. I shall publish Drafts periodically, as time permits. Please send feedback. The final manuscript will be published on paper by O’Reilly, under the Google Press imprint (though perhaps under a different title). The Work will remain online under the CC-BY-3.0 License.

Last week we launched FindMeByIP.com, a simple app which reveals your browsers' support for CSS3 and HTML5 features in an easy to read format using Modernizr.