I also taught myself HTML in high school, but unfortunately I've forgotten almost all of it.
I'm an artist and although I did study art in college for about a year, everything up until that point was self taught. From the time I was in middle school I started reading everything I could about art techniques and stuff like that.
I'm very, very interested in the medical field. I've taken a lot of classes and worked as an EMT and a CNA but I've learned quite a bit of stuff on my own just by reading. I don't know if that really counts as something self taught, since I technically am not really in any kind of position to "apply" the knowledge in any way.
I've been trying to learn Spanish on a site called Duolingo. I actually learned about that site from a hub...I think it was called "Learn a second language and help translate the internet" or something like that. I'm not making much progress but I know a little more than I did...so that is something, I guess lol