Pluralsight's entire course catalogue free for one weekend.
From their website:
Prepare yourself for a weekend filled with as much learning as you can handle.
We’ve made our entire technology skills platform, including all 6,000+ of our expert-led video courses, free for one weekend only.
So get your work zone ready for some serious skill development because it’s time to take advantage of our platform free for three glorious days.
Free in exchange for your contact details