Wow, just from your post about Code Academy they taught me the basics of HTML and I am really enjoying what I have done so far. I wish I knew about this sooner! Basically I'm saying thanks for posting about the site.
You remember how I showed you my website like a year ago? I didn't code that myself. But this one I did: http://www.switchboxreview.com/ I used Twitter Bootstrap for it, by the way.
TheNewBoston taught me the basics of Java, C#, and HTML. Although his videos were good, I also agree with Joe. CodeAcademy is free, and it is good.
Note to self, next time I do any HTML work for HG, fill it with comments about Joe. What not to do: Forget Doctype or page encoding.