Linkbook 4: Machine Learning, Drupal, Testing NodeJS and ApexDesk

Linkbook is my weekly (or so) series listing interesting technical or science related links.

Machine Learning @ Stanford University MOOC
Drupal A php based CMS - wildly known but still trails a bit after wordpress. It's said to be more SEO friendly and efficent than WP but I have no basis of opinion on the matter.
How to Test NodeJS Apps using Mocha, Chai and SinonJS: A NodeJS testing stack I've used. I recommend it. (At least for now, given how this field goes)
ApexDesk Elite Series 60" W Electric Height Adjustable Standing Desk: I've been looking to get a stand/sit desk and this is on my shortlist.