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In short, Google recommends you go with a responsive design when possible, otherwise you can use device-specific HTML but Google asks you to take certain steps to communicate when you are using device-specific HTML.

Helps you load popular widgets asynchronously.

Superb.

Do the rules from Souders' first Performance book still apply?

"A musical realization of the motion graphics of John Whitney as described in his book "digital harmony" var.17 ftw!

Looks like a good example of how to do it.

Hacker News YC: Why CSS Testing Could Be Huge http://t.co/ASB6ASEo

Actually that’s the number one “new model” that the Digerati suggest. Sell T-shirts at your shows to make money! This despite the fact it’s not new. Bands have been selling t-shirts at live shows since the early 1970s. Recording albums to sell a few t-shirts is a terrible way to make money. Thanks for the advice but no thanks. Plus t-shirts are just as bootlegable as music.

There's a lot wrong with this article but there's also a lot right with it, too.

"A multi-faceted visualisation of the world's 50 highest peaks. The interactive graphic, made using Tableau Public, features a clickable map of the summits, satellite images of each peak and figures for each mountain's prominence and overall elevation." Nice.

Hours of fun.

Why performance matters for e-commerce

brew install exiftool. go!

Wah!

A lightweight approach to building HTML5 applications with emphasis on elegance and simplicity

The most important piece of UX for a developer product isn't the homepage or the sign up process or the SDK download. It's the API documentation!

This manual gathers together the key insights into API design that were discovered through many years of software development on the Qt appli- cation development framework at Trolltech (now part of Nokia).

A grunt task to automate moving files to/from Amazon S3.

A common learning application for popular JavaScript MV* frameworks

Now that we’re seeing wide-scale adoption of front-end optimization best practices, misapplication of these best practices could be delivering “false positives” — sites that test well but look bad for real users.

We will deliver a bike to you wherever and whenever you want it, then come and collect it when you're finished.

Every development project, no matter how complex, should have a repeatable, predictable (preferably scripted) new developer project bootstrap.

Style guides (or pattern libraries) are the perfect place to start a website build and a modular base. They bridge the gap between design and development. They’re somewhat similar to a traditional brand guidelines but contain less fluff & nonsense and 100% practical code examples.

CSS has an underlying design and when you work with it, with the natural flow of how CSS is meant to be used, you will find you have a lot less bugs.