I found that course excellent as well - although these days if you don't have the "pro" tier of Codecademy you miss out on the quizzes and other things. Still, it was good and pretty advanced. Learned a lot.
That's very true, I actually ended up subscribing to pro because I was also learning JavaScript and HTML/CSS at the time (new programmer), so I found the pro stuff useful. However, if you're not wanting to drop the $20 or so for the month, I'd say that you can find plenty of fantastic online resources.
