HTML, Where to start?

[QuackzMcDuck]

So I'm taking web design as a high school course and I wanted to get a head start on learning HTML. I would go to TheNewBoston but he has tutorials on XHTML and I don't know if they are the same. So I was wondering, where is the best place to get started learning HTML?

 

[Multiply]

WW3Schools has quite good lessons.