Velocity NY is Coming!

O'Reilly's Velocity Conference is quickly approaching -- it's September 15-17 in beautiful New York. As a follow up to last month's post, I wanted to make sure people knew I had 3 more tickets left to give away to this epic front-end performance conference!
In my last post, I asked for links to awesome performance-related articles. I learned a ton and I hope you did too! This time I'm looking for something a bit more interactive! In the comments below, please post a link to an awesome demo. Whether it's a CSS animation or a canvas/WebGL masterpiece, I want to see something epic!
If you entered via the previous post, your entry will be put in the drawing for subsequent ticket giveaways. If you don't want to chance it and want to get a 20% off discount to the conference, use code AFF20 after clicking this link!
![JavaScript Promise API]()
While synchronous code is easier to follow and debug, async is generally better for performance and flexibility. Why "hold up the show" when you can trigger numerous requests at once and then handle them when each is ready? Promises are becoming a big part of the JavaScript world...
![Write Better JavaScript with Promises]()
You've probably heard the talk around the water cooler about how promises are the future. All of the cool kids are using them, but you don't see what makes them so special. Can't you just use a callback? What's the big deal? In this article, we'll...
![Select Dropdowns, MooTools, and CSS Print]()
I know I've harped on this over and over again but it's important to enhance pages for print. You can do some things using simple CSS but today's post features MooTools and jQuery. We'll be taking the options of a SELECT element and generating...
![Send Email Notifications for Broken Images Using jQuery AJAX]()
It's usually best to repair broken image paths as soon as possible because they can damage a website's credibility. And even worse is having a user tell you about it. Using jQuery and PHP, you can have your page automatically notify you of broken...
This demo blew my mind. Seeing the solar system in action with nothing but CSS animations and a sprinkle of javascript:
http://codepen.io/juliangarnier/pen/idhuG
Cool collection of patterns generated using only CSS:
http://lea.verou.me/css3patterns/#
Zooming in and out on this periodic table while switching between table, helix, sphere and grid provides such an engaging experience for the user. You may even discover elements you hadn’t heard of by toggling between the different views.
http://mrdoob.github.io/three.js/examples/css3d_periodictable.html
Mozilla’s work with Epic in porting the Unreal 3 engine to JavaScript always impressed me. Having a hard time finding the actual Citadel demo on my phone but there’s a good review with screenshots here: http://www.webgl.com/2013/05/webgl-game-demo-unreal-engine-3-epic-citadel/