Codecademy (YC S11) announced today that they’ve launched a redesign:

Two years ago, we started building a product that would help teach people the skills they needed to succeed in a digital world. As more than 24 million people took Codecademy courses on our web and iOS platforms, we too learned and grew. Now, we’re excited to show you our latest project — a new Codecademy designed from the ground up, aimed to help you learn skills hands-on, with real projects, and constant feedback. Better yet, the new Codecademy experience helps to connect you with the real skills you’ll need to succeed in today’s workplace.